Remove irrelevant files from pypi deployment.

- Compy with pypi project naming.

v0.1.9 Enable custom joint-space order and general bug fix.

- Introduced optional parameter `joint_space_order` to the function `load_symmetric_system` in order to obtain the joint-space representations in basis sets provided by the user, when not using default joint-orders.
- Remove bug in rotation matrix computation from two vectors.
- Fix github actions flow
Changes to be committed:
	renamed:    .github/workflows/publish2pypi.yml -> .github/workflows/publish2pypi.yaml
	modified:   .github/workflows/tests.yaml
	modified:   morpho_symm/cfg/robot/cassie.yaml
	new file:   morpho_symm/cfg/robot/ergocub.yaml
	modified:   morpho_symm/data/DynamicsRecording.py
	modified:   morpho_symm/robots/PinSimWrapper.py
	modified:   morpho_symm/utils/algebra_utils.py
	modified:   morpho_symm/utils/mysc.py
	modified:   morpho_symm/utils/pybullet_visual_utils.py
	modified:   morpho_symm/utils/rep_theory_utils.py
	modified:   morpho_symm/utils/robot_utils.py
	modified:   pyproject.toml

V0.1.7