Update 0.42

I added support for spline-based deformation to point cloud models, and switched wyvern and caterpillar monsters to point clouds. Also a bunch of improvements and optimizations.

Change log:

• Wyvern and caterpillar monsters now use point cloud models.

• Various quality improvements for point cloud models.

• Fixed a bug that made gatherers fight over mana.

• Optimized some AI-related code.

• Integrated easy_profiler (dev stuff, you likely don't care about it).

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