Add missing pgcrypto files from previous commit.

contrib/pgcrypto/sql/pgp-armor.sql

@@ -0,0 +1,56 @@
+--
+-- PGP Armor
+--
+
+select armor('');
+select armor('test');
+select dearmor(armor(''));
+select dearmor(armor('zooka'));
+
+select armor('0123456789abcdef0123456789abcdef0123456789abcdef
+0123456789abcdef0123456789abcdef0123456789abcdef');
+
+-- lots formatting
+select dearmor(' a pgp msg:
+
+-----BEGIN PGP MESSAGE-----
+Comment: Some junk
+
+em9va2E=
+
+  =D5cR
+
+-----END PGP MESSAGE-----');
+
+-- lots messages
+select dearmor('
+wrong packet:
+  -----BEGIN PGP MESSAGE-----
+
+  d3Jvbmc=
+  =vCYP
+  -----END PGP MESSAGE-----
+
+right packet:
+-----BEGIN PGP MESSAGE-----
+
+cmlnaHQ=
+=nbpj
+-----END PGP MESSAGE-----
+
+use only first packet
+-----BEGIN PGP MESSAGE-----
+
+d3Jvbmc=
+=vCYP
+-----END PGP MESSAGE-----
+');
+
+-- bad crc
+select dearmor('
+-----BEGIN PGP MESSAGE-----
+
+em9va2E=
+=ZZZZ
+-----END PGP MESSAGE-----
+');