Add functions needed for instanced rendering

Fix: Make getUniformLocation behaviour consistent

Update GitHub Actions MacOS runner

Merge pull request #15 from baaahs/uniform-v

Support uniform float/int arrays

Update Gradle and AGP

Bump version, update repository and version

Consider exact tag for version for local builds and JitPack

Update to Kotlin 1.6.0, lib version to 0.4

Update to Kotlin 1.6.0, lib version to 0.4

Merge pull request #7 from baaahs/create-texture-buffer

Add createBuffer() and createTexture()