Fix some minor issues with the sqloper schemas.

- Only create the pgsql table if it doesn't exist.
- Separate the active column out from others.

docs/sql/sqloper/mysql.sql

@@ -1,5 +1,6 @@
 CREATE TABLE IF NOT EXISTS `ircd_opers` (
   `active` bool NOT NULL DEFAULT true,
+
   `name` text NOT NULL,
   `password` text NOT NULL,
   `host` text NOT NULL,

docs/sql/sqloper/pgsql.sql

@@ -4,8 +4,9 @@ CREATE TYPE "autologin" AS ENUM (
   'never'
 );
 
-CREATE TABLE "ircd_opers" (
+CREATE TABLE IF NOT EXISTS "ircd_opers" (
   "active" bool NOT NULL DEFAULT true,
+
   "name" text NOT NULL,
   "password" text NOT NULL,
   "host" text NOT NULL,

docs/sql/sqloper/sqlite3.sql

@@ -1,5 +1,6 @@
 CREATE TABLE IF NOT EXISTS "ircd_opers" (
   "active" bool NOT NULL DEFAULT true,
+
   "name" text NOT NULL,
   "password" text NOT NULL,
   "host" text NOT NULL,