#26645: Update our configs to include the max plus engine
Update the default configs to support 3dsmaxplus. Note that it doesn't add it to any launchers.
Merge branch '26645_maxplus' of https://github.com/shotgunsoftware/tk-config-default into 26645_maxplus

Conflicts:
	env/asset.yml
	env/project.yml
	env/shot_step.yml