Changed the highlighting system.

Now a sprite will have another sprite overlapping when required, so it mimicks the original system, and both highlighting alpha and base alpha can be put to 255 each without having white sprites.

Fixed HUDPaint being overriden

Now when all weapons are empty and you've got skipping disabled you can still navigate through them.

Hopefully fixed all of the issues regarding empty weapons and automatic skipping.

Fixed bug when trying to switch weapons when all other options are empty.

WARNING: When you've got just one weapon and it's empty it might crash your game! I'm working on a patch right now!

Added force download support.

Added fast weapon switch support.

Added an add-ons folder which contents are read automatically.
Fixed errors with the weapon selector when having no weapons or an invalid ammunition type.

Special thanks to Matsilagi (steamcommunity/id/matsilagi2/) for the fix.

Fixed an error when drawing the secondary ammo and fixed weapon info boxes overlapping on the selector.

Fixed the weapon selector not coming back when using the physgun.

Fixed conflict with numbers and the weapon selector when using the physgun.

Added an override so the weapon selector won't come up when scrolling with the physgun.