Python type hints in a separate module

[tochilinak]

Description

• Moved abtract parts of utbot-python typing to a separate module (utbot-python-types)

• Small refactoring of this module

• Moved module utbot_mypy_runner into this repository

• Added Gradle tasks to publish Python modules in pip

• Automated json generation for utbot-python-types tests.

• Added bash script run_tests_all.sh for more convenient testing

How to test

Automated tests

Tests for Python type hints are now in utbot-python-types/src/test.

Self-check list

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• The functionality I've repaired, changed or added is covered with automated tests.
• Manual tests have been provided optionally.
• The documentation for the functionality I've been working on is up-to-date.