This leads to code that is easier to understand and runs
faster thanks to GDScript's typed instructions.
The untyped declaration warning is now enabled on all projects
where type hints were added. All projects currently run without
any untyped declration warnings.
Dodge the Creeps and Squash the Creeps demos intentionally don't
use type hints to match the documentation, where type hints haven't
been adopted yet (given its beginner focus).
Add Functional Test / Stack & Pyramid
For testing stack stability.
Add Functional Test / Raycasts
Visually test raycast on different shapes.
Add Performance Test / Broadphase
Add/move/remove lots of non-colliding objects and measure time.
Fix leaks on exit
Some Nodes are copied and removed from the scene to be used as templates,
they need to be freed manually on exit.
Fix Performance Test / Contacts
Positions adjusted, some shape types were not created at the center.
