feat(hud): added slider to change crosshair size from 0.0 to 2.0 in 0.2f increments
refactor(jkgui): renamed member variable:
jkGuiElement::anonymous_13 to an union of either an int representing oldForce points or an pointer to the array which contains the idices of the used uiBitmaps for the GuiElement
Regarding #122 again: