Fixed not usable console-commands like "ev map"

The function checked only if plugin.ChatCommand was a string - changed it now to same behavior than sv_chatcommands to also check if the plugin.ChatCommand is using a table.

So this fixes for example the use of map change plugin from console.
adds map-change tab in menu
Merge pull request #1 from X-Coder/patch-2

Fixed not usable console-commands like "ev map"
Code-Cleanup

Removed indentation and last line break
Merge pull request #2 from X-Coder/patch-2

Code-Cleanup
Merge remote-tracking branch 'X-Coder/master' into settings-cleanup

Conflicts:
	lua/ev_plugins/sv_consolecommands.lua