277 feature run agent container without spawning a vehicle

[ll7]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes #277

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Does this PR introduce a breaking change?

e.g. is old functionality not usable anymore

Most important changes

Which files functionalities are most important in this PR. On which part should the reviewer be focussed on?

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works (might be obsolete with CI later on)
• New and existing unit tests pass locally with my changes (might be obsolete with CI later on)

[github-actions]

Simulation results

Metric	Value
Avg. driving score	0.000212
Avg. route completion	21.645
Avg. infraction penalty	1.7e-05
Collisions with pedestrians	1.508
Collisions with vehicles	14.775
Collisions with layout	3.317
Red lights infractions	0.302
Stop sign infractions	0.905
Off-road infractions	0.103
Route deviations	0.302
Route timeouts	0.0
Agent blocked	0.302
Yield emergency vehicles infractions	0.0
Scenario timeouts	0.603
Min speed infractions	0.0