Reordered HFS discovery to resolve issues where the paths would not update when a user upgrades their version of Houdini.
Reordered HFS discovery to resolve issues where the paths would not update when a user upgrades their version of Houdini.

sideeffects/HoudiniEngineForMaya,sideeffects/HoudiniEngineForMaya,sideeffects/HoudiniEngineForMaya