Mesh_PrimitiveMode is missing some tests along Points and Lines

- [x] We need more points so that the model is visible. Outline a square with 16 points (Whatever fits on two lines)? All have the same normal.
- [ ] Add points with normals. W/o indices. With Texture coords

- [ ] Add Lines w normals
- [ ] Add lines with normals, tangent, normal tex. With Texture coords

Consider grouping all of the extra stuff into one column if things get too wide.

Start by locating the Mesh_PrimitiveMode asset or generation entry point and reviewing its existing point and line cases. Add coverage for the listed combinations of points or lines, normals, indices, tangents, and texture coordinates, while keeping the model readable and extra content grouped if needed.

Written by the indexing model from the issue text.