Fix errors in fish factory, right hand pointer and add main menu

[qlpham231]

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...) Bug fixes and feature

• What is the current behavior? (You can also link to an open issue here) A lot of red error messages at the start of the game #488, right hand pointer is not used #499 and main menu is not set up for all scenes #500

• What is the new behavior? (if this is a feature change)

  • Fixed most of the red error messages with the exception of some from the fishknife and the volume slider.
  • All the scenes should now use the right hand pointer to click on the ui in oculus link and in build. Mouse pointer can be used to click on ui in editor.
  • Should also now be possible to build fish factory.
  • Newest main menu release is added to all scenes and configured to open from X button on left controller and '0' button on keyboard.

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?) No

• Other information: None

[ingolvjr]

This should possibly close this issue too? #468