Minor bug fix and seperated the platform menu

Bug fixed: the hitboxes with objects below an active UIObjectmenu, Error
was in the wrong height was gotten from the selected menu.
Seperated the platform menu into several smaller menus.
Minor bug fix with standard units in Editor

Unit had no activation nor update for UIItems in Editor (Behind and
Solid)
Merge branch 'master' of https://github.com/Dahlqvist/Spelprojekt1