wip(frontend): create settings table

Issue #1145

sql/data/insert_settings.sql

+INSERT INTO settings (id, name, enabled) VALUES ('1','monitoring',0);
+INSERT INTO settings (id, name, enabled) VALUES ('2','guide',0);
+INSERT INTO settings (id, name, enabled) VALUES ('3','auto_view',0);
+INSERT INTO settings (id, name, enabled) VALUES ('4','fallback',0);
+INSERT INTO settings (id, name, enabled) VALUES ('5','session_timeout',9300);
+INSERT INTO settings (id, name, enabled) VALUES ('6','session_timeout_admin',9300);
\ No newline at end of file

sql/mysql/settings.sql

+CREATE TABLE `settings` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `name` char(32) NOT NULL,
+  `enabled` int default NULL,
+  PRIMARY KEY (`id`)
+);

sql/sqlite/settings.sql

+CREATE TABLE `settings` (
+  `id` integer NOT NULL PRIMARY KEY AUTOINCREMENT
+,  `name` char(32) NOT NULL
+,  `enabled` integer default NULL
+);