V4.5.6 Bug fixes, optimisation and API

This update has important bug fixes

1. Off-center offset on the line pattern is fixed. WARNING : THIS WILL SLIGHTLY OFFSET ALL YOUR OLD AND NEW LINES PATTERNS. BE AWARE OF THAT WHEN UPDATING.
2. MAJOR BUG FIX with the handling of destroyed bullets. Bullets could not be deleted correclty and cause continuous lag. This has been fully fixed.
3. There was an issue with the spawners detecting the camera so start_on_cam wans't working. It's fixed.

You'll also enjoy some new API functions

• Pause your spawners and resume spawning later
• Clear the list of bullets scheduled to spawn (Useful when a fight is ended and you don’t want to spawn any more bullets)
• Getter function to get a list of bullets based on filters.