Added Pause and resume to behavior one (pack)

Include Pause Resume action for greater freedom in your pause and resume mechanisms:

- The action pauses and resumes only.

- Can choose easily a Key with the native "When a key is pressed do something" instead of using Javascript key code.

- You can play other actions alongside this one such as play a sound at pause/resume (ideal for opening in game market, with a bell characteristic sound for example.)

- Or you can set visibility to multiple overlays at pause compared to the behavior one (ideal for menus etc.).

- CCB file shows how it could be done.