Adding CONTRIBUTING file to help facilitate contributions and process around it
Adding CONTRIBUTING file to help facilitate contributions and process around it

This file aims at defining the contribution process and make it easier
for developers

NeerajW/HoloToolkit-Unity,CombatCube/HoloAtelier,micthom-msft/HoloToolkit-Unity,paseb/MixedRealityToolkit-Unity,ContextVR/HoloToolkit-Unity,thewesleycrushers/hololens,vbandi/HoloToolkit-Unity,HattMarris1/HoloToolkit-Unity,out-of-pixel/HoloToolkit-Unity,darax/HoloToolkit-Unity,ForrestTrepte/HoloToolkit-Unity,HoloFan/HoloToolkit-Unity,willcong/HoloToolkit-Unity,davesmits/HoloToolkit-Unity,joevdh/HoloToolkit-Unity,chadbramwell/HoloToolkit-Unity,dbastienMS/HoloToolkit-Unity,Polyrhythm/bud,CameronVetter/HoloToolkit-Unity,paseb/HoloToolkit-Unity