Add missing pgcrypto files from previous commit.

contrib/pgcrypto/expected/pgp-pubkey-encrypt.out

@@ -0,0 +1,59 @@
+--
+-- PGP Public Key Encryption
+--
+-- successful encrypt/decrypt
+select pgp_pub_decrypt(
+	pgp_pub_encrypt('Secret msg', dearmor(pubkey)),
+	dearmor(seckey))
+from keytbl where keytbl.id=1;
+ pgp_pub_decrypt 
+-----------------
+ Secret msg
+(1 row)
+
+select pgp_pub_decrypt(
+		pgp_pub_encrypt('Secret msg', dearmor(pubkey)),
+		dearmor(seckey))
+from keytbl where keytbl.id=2;
+ pgp_pub_decrypt 
+-----------------
+ Secret msg
+(1 row)
+
+select pgp_pub_decrypt(
+		pgp_pub_encrypt('Secret msg', dearmor(pubkey)),
+		dearmor(seckey))
+from keytbl where keytbl.id=3;
+ pgp_pub_decrypt 
+-----------------
+ Secret msg
+(1 row)
+
+-- try with rsa-sign only
+select pgp_pub_decrypt(
+		pgp_pub_encrypt('Secret msg', dearmor(pubkey)),
+		dearmor(seckey))
+from keytbl where keytbl.id=4;
+ERROR:  pgp_encrypt error: No usable key found (expecting Elgamal key)
+-- try with secret key
+select pgp_pub_decrypt(
+		pgp_pub_encrypt('Secret msg', dearmor(seckey)),
+		dearmor(seckey))
+from keytbl where keytbl.id=1;
+ERROR:  pgp_encrypt error: Refusing to encrypt with secret key
+-- does text-to-bytea works
+select pgp_pub_decrypt_bytea(
+		pgp_pub_encrypt('Secret msg', dearmor(pubkey)),
+		dearmor(seckey))
+from keytbl where keytbl.id=1;
+ pgp_pub_decrypt_bytea 
+-----------------------
+ Secret msg
+(1 row)
+
+-- and bytea-to-text?
+select pgp_pub_decrypt(
+		pgp_pub_encrypt_bytea('Secret msg', dearmor(pubkey)),
+		dearmor(seckey))
+from keytbl where keytbl.id=1;
+ERROR:  pgp_decrypt error: Not text data