Update 0.43

I had some health issues, so this update took way longer than expected. I'm much better now though.

The main thing in this update is the new boss fight mode.

Also, I switched to DirectX 9 ex, which might cause issues on some systems, so let me know if there are any weird bugs or problems starting the game.

Change log:

• Added initial boss fight game mode.
  
• Switched to DirectX 9 ex, requires Windows Vista or newer.
  
• Player now collides with static objects.
  
• Gatherers now ignore mana that is in the castle limits.
  
• Fixed a mouse input bug.
  
• Using a different font (more localization-friendly).
  
• Switched to Visual C 2017.
  
• Added IK animation system.
  
• Added voxel-based model generation system.
  
• Added a bunch of developer tools.