Mark some contrib modules as "trusted".

This allows these modules to be installed into a database without
superuser privileges (assuming that the DBA or sysadmin has installed
the module's files in the expected place).  You only need CREATE
privilege on the current database, which by default would be
available to the database owner.

The following modules are marked trusted:

btree_gin
btree_gist
citext
cube
dict_int
earthdistance
fuzzystrmatch
hstore
hstore_plperl
intarray
isn
jsonb_plperl
lo
ltree
pg_trgm
pgcrypto
seg
tablefunc
tcn
tsm_system_rows
tsm_system_time
unaccent
uuid-ossp

In the future we might mark some more modules trusted, but there
seems to be no debate about these, and on the whole it seems wise
to be conservative with use of this feature to start out with.

Discussion: https://postgr.es/m/32315.1580326876@sss.pgh.pa.us

contrib/btree_gin/btree_gin.control

@@ -3,3 +3,4 @@ comment = 'support for indexing common datatypes in GIN'
 default_version = '1.3'
 module_pathname = '$libdir/btree_gin'
 relocatable = true
+trusted = true

contrib/btree_gist/btree_gist.control

@@ -3,3 +3,4 @@ comment = 'support for indexing common datatypes in GiST'
 default_version = '1.5'
 module_pathname = '$libdir/btree_gist'
 relocatable = true
+trusted = true

contrib/citext/citext.control

@@ -3,3 +3,4 @@ comment = 'data type for case-insensitive character strings'
 default_version = '1.6'
 module_pathname = '$libdir/citext'
 relocatable = true
+trusted = true

contrib/cube/cube.control

@@ -3,3 +3,4 @@ comment = 'data type for multidimensional cubes'
 default_version = '1.4'
 module_pathname = '$libdir/cube'
 relocatable = true
+trusted = true

contrib/dict_int/dict_int.control

@@ -3,3 +3,4 @@ comment = 'text search dictionary template for integers'
 default_version = '1.0'
 module_pathname = '$libdir/dict_int'
 relocatable = true
+trusted = true

contrib/earthdistance/earthdistance.control

@@ -3,4 +3,5 @@ comment = 'calculate great-circle distances on the surface of the Earth'
 default_version = '1.1'
 module_pathname = '$libdir/earthdistance'
 relocatable = true
+trusted = true
 requires = 'cube'

contrib/fuzzystrmatch/fuzzystrmatch.control

@@ -3,3 +3,4 @@ comment = 'determine similarities and distance between strings'
 default_version = '1.1'
 module_pathname = '$libdir/fuzzystrmatch'
 relocatable = true
+trusted = true

contrib/hstore/hstore.control

@@ -3,3 +3,4 @@ comment = 'data type for storing sets of (key, value) pairs'
 default_version = '1.6'
 module_pathname = '$libdir/hstore'
 relocatable = true
+trusted = true

contrib/hstore_plperl/hstore_plperl.control

@@ -3,4 +3,5 @@ comment = 'transform between hstore and plperl'
 default_version = '1.0'
 module_pathname = '$libdir/hstore_plperl'
 relocatable = true
+trusted = true
 requires = 'hstore,plperl'

contrib/intarray/intarray.control

@@ -3,3 +3,4 @@ comment = 'functions, operators, and index support for 1-D arrays of integers'
 default_version = '1.2'
 module_pathname = '$libdir/_int'
 relocatable = true
+trusted = true

contrib/isn/isn.control

@@ -3,3 +3,4 @@ comment = 'data types for international product numbering standards'
 default_version = '1.2'
 module_pathname = '$libdir/isn'
 relocatable = true
+trusted = true

contrib/jsonb_plperl/jsonb_plperl.control

@@ -3,4 +3,5 @@ comment = 'transform between jsonb and plperl'
 default_version = '1.0'
 module_pathname = '$libdir/jsonb_plperl'
 relocatable = true
+trusted = true
 requires = 'plperl'

contrib/lo/lo.control

@@ -3,3 +3,4 @@ comment = 'Large Object maintenance'
 default_version = '1.1'
 module_pathname = '$libdir/lo'
 relocatable = true
+trusted = true

contrib/ltree/ltree.control

@@ -3,3 +3,4 @@ comment = 'data type for hierarchical tree-like structures'
 default_version = '1.1'
 module_pathname = '$libdir/ltree'
 relocatable = true
+trusted = true

contrib/pg_trgm/pg_trgm.control

@@ -3,3 +3,4 @@ comment = 'text similarity measurement and index searching based on trigrams'
 default_version = '1.4'
 module_pathname = '$libdir/pg_trgm'
 relocatable = true
+trusted = true

contrib/pgcrypto/pgcrypto.control

@@ -3,3 +3,4 @@ comment = 'cryptographic functions'
 default_version = '1.3'
 module_pathname = '$libdir/pgcrypto'
 relocatable = true
+trusted = true

contrib/seg/seg.control

@@ -3,3 +3,4 @@ comment = 'data type for representing line segments or floating-point intervals'
 default_version = '1.3'
 module_pathname = '$libdir/seg'
 relocatable = true
+trusted = true

contrib/tablefunc/tablefunc.control

@@ -3,3 +3,4 @@ comment = 'functions that manipulate whole tables, including crosstab'
 default_version = '1.0'
 module_pathname = '$libdir/tablefunc'
 relocatable = true
+trusted = true

contrib/tcn/tcn.control

@@ -3,3 +3,4 @@ comment = 'Triggered change notifications'
 default_version = '1.0'
 module_pathname = '$libdir/tcn'
 relocatable = true
+trusted = true

contrib/tsm_system_rows/tsm_system_rows.control

@@ -3,3 +3,4 @@ comment = 'TABLESAMPLE method which accepts number of rows as a limit'
 default_version = '1.0'
 module_pathname = '$libdir/tsm_system_rows'
 relocatable = true
+trusted = true

contrib/tsm_system_time/tsm_system_time.control

@@ -3,3 +3,4 @@ comment = 'TABLESAMPLE method which accepts time in milliseconds as a limit'
 default_version = '1.0'
 module_pathname = '$libdir/tsm_system_time'
 relocatable = true
+trusted = true

contrib/unaccent/unaccent.control

@@ -3,3 +3,4 @@ comment = 'text search dictionary that removes accents'
 default_version = '1.1'
 module_pathname = '$libdir/unaccent'
 relocatable = true
+trusted = true

contrib/uuid-ossp/uuid-ossp.control

@@ -3,3 +3,4 @@ comment = 'generate universally unique identifiers (UUIDs)'
 default_version = '1.1'
 module_pathname = '$libdir/uuid-ossp'
 relocatable = true
+trusted = true