[DrumsUI] Updater

[Drumstix42]

1. Thanks

2. Correct, the DrumsUI subfolder can be deleted. I decided to make the folder DrumsUI_custom to be less confusing when talking about the "DrumsUI" folder.

3. The reason I'm patching eq2ui_popup_add_poi.xml is because I wanted to make sure my old version got flushed out. It's actual a copy of the DefaultUI file. You can safely use the EQ2map version, or none at all. This was just my best route to achieve maximum compatibility (the old file seemed to cause issues).

The reason I'm patching an ignorelist file with no content, is becaue the Variant for the Drums Icons has content inside. If you decide to Uninstall that Variant, a new file needs to overwrite it. Hence the file with no content.

Also, I should have stated it above, but remember to repatch EQ2maps after using my Updater. Especially after choosing variants.