[CGMZ] Plugin Commands - Version 1.5.0

Hi all, today this plugin was updated to version 1.5.0!
This version adds some new plugin commands for BGM/BGS.
Get BGM Pos - Stores the current BGM position into a variable, in case you want certain effects to happen in time to your BGM.
Get BGS Pos - Stores the current BGS position into a variable, in case you want certain effects to happen in time to your BGS.
- Added plugin command to get BGM position
- Added plugin command to get BGS position