OpenGLCamera/UniformLocation were a partial earlier attempt; superseded by
the new gui.gl package per docs/superpowers/plans/2026-06-18-opengl-3d-view.md.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Phased TDD plan: pure math/data core (Mat4, OrbitCamera, ShadeColor,
PickingCodec, MeshAccumulator, IndexSetBuilder, SceneBuilder), GL
infrastructure (shaders, GlScene, PickingFramebuffer, HighlightOverlay,
GLViewport), GUI wiring, manual verification, and packaging.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Replaces the JavaFX SubScene/MeshView rendering with an OpenGL viewport
(openglfx-jogl, GL 3.3 core), single global VBO, GPU color-picking, and
baked fake shading. Windows/Linux targets; JavaFX 3D path removed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

fixed a bug where a degenerate triangle causing the all polygons wrong orientation check to report false positives

Version 3.18.2

See merge request !39

Adds a generalized version of the 3D-Renderer LoadingDialog to improve
UX by showing that CityDoctor is currently busy doing something in the
background of indeterminate length, e.g. opening a file or waiting for
the Schematron thread to finish.