min/g3n-engine: Go 3D Game Engine http://g3n.rocks Fork from https://github.com/g3n/engine @ 101beddb9ce02950b8b5567a27d661aa9e2cabba

Daniel Salvadori fc88461e90 fixed docs		7 lat temu
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shape	e3081d4d45 split up collision and physics	7 lat temu
collision.go	fc88461e90 fixed docs	7 lat temu
contact.go	e3081d4d45 split up collision and physics	7 lat temu
doc.go	fc88461e90 fixed docs	7 lat temu
matrix.go	e3081d4d45 split up collision and physics	7 lat temu
matrix_test.go	e3081d4d45 split up collision and physics	7 lat temu