v2.1.0

After a long period of time, a new release is here.
Highlights:

Core Engine

• Support for binary shaders for OpenGL 4 and OpenGL ES backends.
• Added C bindings for Horde3D API.

Samples

• Emscripten support.
• GLFW updated to 3.4, SDL to 2.32.10 (versions that are downloaded if requested during build).

Infrastructure

• CI/CD builds for desktop and mobile platforms

Editor

• Horde3D editor's gizmos were reimplemented with Im3D framework, OpenGL 1 function calls were removed. libGLU is currently still used.