[Feature] Statically link SDL2 rather than depending on DLL

[hogsy]

Summary

Very minor change. Right now SDL2 is being linked dynamically, which is fine, but for the sake of keeping the distribution simple I'd like to statically link it instead.

User Story

N/A

Acceptance Criteria

It's statically linked.

Mockups or Wireframes

N/A

Dependencies

N/A

Risks or Challenges

Zero.