PyPi first release of FEDOT

Created by: J3FALL

We need to define which of new features should be in the first public release version of FEDOT. Currently, I suggest to include such activities:

New timeseries prediction (see PR: #138) ~~- New readme and readthedocs documentation (see #133 (closed) and this branch)~~ ~~- Default logging (see #44 (closed))~~ ~~- [Optional] Chain import/export (see #129 (closed))~~

To figure out how to work with https://pypi.org/ repositories and try to publish current version of FEDOT just for tests.
Extend our CI/CD pipeline adding new action - "pypi publication". For instance, it can be organized through action: "github push into release branch -> publish current release-version of FEDOT to pypi".