Fix character floating

[Alanine42]

solution 1:

• redo AABB to start from character's feet & translate blender models's feet to 0,0,0

solution 2:

• translate each character's blender model slightly downward

solution 3:

• in sge Dynamic entity constructor, translate each character downward

for solution 2 and 3, the downward shift needs to be different for each character to account for different character heights.

[Alanine42]

solution 3 is prolly the easiest