It would be nice to have "render to texture", "render baking", "cycles texture baking". This would help a lot in game development because you don't need to run shadow or material render in the game itself.

Many other 3d software have this feature.
3ds-max:
https://knowledge.autodesk.com/support/3ds-max/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/3DSMax/files/GUID-37414F9F-5E33-4B1C-A77F-547D0B6F511A-htm.html
Cinema 4d:
https://www.youtube.com/watch?v=TvZiDsODf8k
Maya:
https://docs.chaosgroup.com/display/VRAY3MAYA/Texture+Baking