support normalizing 2d vectors in addition to 3d ones
support normalizing 2d vectors in addition to 3d ones

xvilan/tangram,ceseale/tangram,zerebubuth/tangram,DHaylock/tangram,taylorhxu/tangram,rosamcgee/tangram,DHaylock/tangram,tangrams/tangram,TitoAgudelo/tangram,taylorhxu/tangram,TitoAgudelo/tangram,xvilan/tangram,tangrams/tangram,zerebubuth/tangram,ceseale/tangram,zerebubuth/tangram,rosamcgee/tangram,TitoAgudelo/tangram,xvilan/tangram,ceseale/tangram,taylorhxu/tangram,DHaylock/tangram,rosamcgee/tangram