Change the name of the parameter table in the CLI to "sqlite_parameters".

Doing so involves adding SQLITE_DBCONFIG_WRITABLE_SCHEMA and allowing the
creation of tables whose names begin with "sqlite_" and that are indexed
while writable_schema is on.

FossilOrigin-Name: 24ef3844692debc2db7b1d427f5dcf4050481a8c7f71c3b516766b819ecab587

src/main.c

@@ -843,6 +843,8 @@ int sqlite3_db_config(sqlite3 *db, int op, ...){
         { SQLITE_DBCONFIG_TRIGGER_EQP,           SQLITE_TriggerEQP     },
         { SQLITE_DBCONFIG_RESET_DATABASE,        SQLITE_ResetDatabase  },
         { SQLITE_DBCONFIG_DEFENSIVE,             SQLITE_Defensive      },
+        { SQLITE_DBCONFIG_WRITABLE_SCHEMA,       SQLITE_WriteSchema|
+                                                 SQLITE_NoSchemaError  },
       };
       unsigned int i;
       rc = SQLITE_ERROR; /* IMP: R-42790-23372 */