Add base class for Micro Manager and restructure main

[tjwsch]

In preparation for the Snapshot computation #101 this PR adds base classes to reduce code repetitions. This introduces a new interface class MicroManagerInterface, a base class MicroManager and renames the original MicroManager class in MicroManagerCoupling. The PR also changes the structure and position of the main-method to allow snapshot execution via a flag as suggested in #101.

This is also done with the idea to extend this base class in a potential future restructuting process of the MicroManagerCoupling class.

Feedback on how to implement the base classes in clean way is highly apprecitated as I wasn't able to find examples or best practices regarding this scenario, in which a base class handles part of a constrcutor.

Checklist:

• I made sure that the CI passed before I ask for a review.
• I added a summary of the changes (compared to the last release) in the CHANGELOG.md.
• If necessary, I made changes to the documentation and/or added new content.
• I will remember to squash-and-merge, providing a useful summary of the changes of this PR.

[IshaanDesai]

Perfect 👍 good to go after the CHANGELOG entry is reworded!