DO: Fix warnings & generate 3D models

[ubruhin]

Fix library check warnings:

• Specify assembly type
• Specify pad functions
• Add package outline polygon

Generate 3D models, for both the polarized and non-polarized packages:

[ubruhin]

Hmm CI is broken, probably caused by the fact that it installs now numpy 2.0.0 while the last successful CI run was with numpy 1.xx (depending on Python version). Numpy seems to be an indirect dependency of CadQuery:

Collecting numpy>=1.20.0 (from nptyping==2.0.1->cadquery==2.3.1->librepcb-parts-generator==0.1.0)

@rnestler @dbrgn any suggestion how to fix this? Adding numpy<2 as a dependency? And can we pin all dependency versions?

[dbrgn]

I think you could just add it to the dependencies in pyproject.toml, but don't have a lot of experience with that format yet... Maybe @rnestler knows more.

[ubruhin]

Rebased (fixes CI) and library PR opened: LibrePCB-Libraries/LibrePCB_Base.lplib#139

So it should be ready now.

[ubruhin]

Library PR merged, thus also merging this.