tweak how the header customization is stored in the settings file

Render float consts into defines

GetRandom -> GetRandomf

allow F5 magic to refresh demos/saves list too

rename a few Draw* routines

wut?

remove old ukeys hooks from pascalexport (definitely breaking the ios port, will have to work on that, but for now sheepluva and xeli will be happy *hopefully*)

rooms list + reorder filter chain for better performance (sorting and full-text search are now last step, not first) + automatically restore custom column widths and sort settings...

roomslist: reimplement filters implementation details: YO DAWG, I herd you like QSortFilterProxyModels, so I put a QSortFilterProxyModel in your QSortFilterProxyModel in your QSortFilterProxyModel in your QSortFilterProxyModel so that you can filter while you filter while you filter while you filter!

remove IFDEF 0 for sake of poor parser

room list: replace magic table column indexes with enum. makes future changes to the room list format way easier.

marked a couple of functions as inline resolved all warnings/hints/notes added -Ooregvar optimisation (stores frequently used variables in registers, saving ~30k code size)

make search filter field have a useable size on low frontend resolution

change every return value into a more pascal-ish form, using the name of the fucntion (helps the parser and macpas compaitilibity)

make column sorting three-state: asc -> dsc -> off/default (= by room state)