[openrndr-color] Fix linearity in rgb() short-hands. Close #453

Implement feature variants (#445)

Migrate from `buildSrc` to `build-logic`. Introduce `VariantPlugin` to configure platform specific dependencies and jars that published in gradle module metadata.

[openrndr-ffmpeg] Fix `setpts` filter calculation for variable frame …

…rate in `VideoWriter` to use frame rate-based divisor

Update github action workflows to use nmcp tasks

[openrndr-math] Fix file extensions for `GeometricPrimitive2D` and `G…

…eometricPrimitive3D` classes

Upgrade tjunit jupiter 5.12.2, kotlin logging 7.0.7

Upgrade kotlin-logging to 7.0.4, junitJupiter to 5.12.0, and slf4j to…

… 2.0.17.

[openrndr-gl3-natives-macos] Update Angle binaries

[openrndr-draw] Add ², ³ to standard character set

Upgrade to kotlin-logging 7.0.0, kotlinx-serialization 1.7.1, kotest …

…5.9.1