Add press atomic action

[skywhite1024]

Description

This PR adds the Press atomic action to the atomic action system.

It includes:

• PressAction and PressActionCfg registration/export support
• a Press tutorial script under scripts/tutorials/atomic_action/press.py
• unit coverage for Press action construction and execution flow
• documentation updates for the built-in atomic actions page
• a Press demo gif for the docs

Dependencies: None.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Enhancement (non-breaking change which improves an existing functionality)
• New feature (non-breaking change which adds functionality)
• Breaking change (existing functionality will not work without user modification)
• Documentation update

Screenshots

Press demo gif is added at:

docs/source/_static/atomic_actions/press.gif

Validation

• black --check --diff --color embodichain/lab/sim/atomic_actions/actions.py embodichain/lab/sim/atomic_actions/__init__.py scripts/tutorials/atomic_action/press.py tests/sim/atomic_actions/test_actions.py
• python -m pytest tests/sim/atomic_actions/test_actions.py
• python -m pytest tests/sim/planners/test_motion_generator.py
• python -m pytest tests/sim/atomic_actions/test_actions.py tests/sim/planners/test_motion_generator.py

Checklist

• I have run formatting checks.
• I have made corresponding changes to the documentation.
• I have added tests that prove the feature works.
• Dependencies have been updated, if applicable.