Add switching between the 1st person and the 3th person views.

[astrochili]

• The current camera smoothness is suitable for 3th person look but not for the 1th person look.
• It's not a good idea to allow to get 1th person look from 3th person look by zooming in.

Would be nice to switch the camera settings by the key_1 and key_2 actions. Also, the blue capsule model should be disabled in the 1th person view.