Added public files
Roughly added all public files. Probably missed some, though.
diff --git a/doc/efun/pg_close b/doc/efun/pg_close
new file mode 100644
index 0000000..af4f8f0
--- /dev/null
+++ b/doc/efun/pg_close
@@ -0,0 +1,19 @@
+OPTIONAL
+SYNOPSIS
+ void pg_close()
+
+DESCRIPTION
+ Close the database connection for the current object, if there is one.
+
+ The function is available only if the driver is compiled with
+ PostgreSQL support. In that case, __PGSQL__ is defined.
+
+ The efun triggers a privilege violation ("pgsql", "pg_close").
+
+HISTORY
+ Added in 3.3.445.
+ LDMud 3.3.640 added the privilege violation.
+
+SEE ALSO
+ pgsql(C), pg_connect(E), pg_conv_string(E), pg_query(E), pg_pending(E),
+ privilege_violation(M)