Abstract GraphOptimiser from FEDOT

Created by: gkirgizov

Meta-issue for tracking progress about our Dream: making an ecosystem of application domains around one abstract and modular GraphOptimiser. After this issue we could begin transition of EPDE/BAMT/Gefest and possibly others onto new architecture; while FEDOT will be using this GraphOptimiser in the domain of AutoML.

These are the steps that I see as necessary for this:

#608 (closed)
#705
#706
Likely needed a better definition of Composer / ComposerBuilder and separation of their responsibilities
Define responsibilities of the base GraphOptimiser, especially wrt EvoGraphOptimiser. Maybe it will be just an abstract interface, maybe it will handle some infrastructural functions (logging/timing/history/stop conditions).

You can link to this issue any thoughts/features/requirements you have in mind about GraphOptimiser.