Lots and lots of changes under the hood (separated UI and logic as much as possible).

Made the UI look nicer.

More config options.

Fixed a bug, where the game would crash when self referencing schematics are present.

Fixed a bug where items are not properly marked as unavailable.

Added the option to adjust filtering behavior (whether items to which a filter can not be meaningfully applied should pass or not) to the ini.

Fixed a bug where the mod would not work, with schematics (i.e. Squad upgrades).
(This fix may not end up being a permanent solution but is more than good enough for now).

Added the option to exclude filters via a new ini.

Fixed a bug where items would not be marked as unavailable even when the required resources were not available.

Fixed a bug where the resource bar is hidden in the build item menu when using this mod.
Highlander is now a requirement for the mod.

Improved the way filters are applied to items so more of them should be effective now.

Made Logs toggleable, and removed some unneeded logging.