Add tessagon to requirements.txt

[ricardoavelino]

Describe the bug
tessagon should be added as requirement on compas_libigl I think. I got this error when I did it the first time

To Reproduce
Start a installation from scratch at Rhino 8 and did

path/to/rhinocode/python3.9 pip install -e .

Expected behavior
Here is the error in Rhino.

File "/Users/mricardo/Code/compas_dem/src/compas_dem/models/blockmodel.py", line 17, in
from compas_libigl.mapping import map_pattern_to_mesh
File "/Users/mricardo/.rhinocode/py39-rh8/lib/python3.9/site-packages/compas_libigl/mapping.py", line 3, in
from tessagon.adaptors.list_adaptor import ListAdaptor
ModuleNotFoundError: No module named 'tessagon'

Desktop:

• MacOS: 15.6
• Python version: 3.9
• Python package manager: Python Rhino

[tomvanmele]

@petrasvestartas could try to figure how to solve this now once and for all? :)

[tomvanmele]

@ricardoavelino new release is building and should be available later today. please check if the issue is solved...

[tomvanmele]

solved in #40