Consolidated-dockerfiles

[eccentricOrange]

• fix workflow execution conditions (by 8d1e4f8)
• consolidate the Dockerfiles to reduce redundancy (f62bf10)
• update CI/CD to handle consolidation
• update docs for this (305f88e)
• fix copying tmux config files (0895159)

[eccentricOrange]

@rtarun1 I have now separated decoupled the humble_harmonic Dockerfile from the wheelchair2_base_gazebo one like you told me to.

An additional consideration: if the images resulting from these CI/CD builds ever end up taking too much storage space online, we can implement something like the delete package action to clear old/unused versions. Perhaps run this on every master build. Or maybe we can have a policy like every time you do a build on master, delete all the old dev tag images.