Merge remote-tracking branch 'origin/test_run_mod'

.gitmodules

test-run

test/lib/Makefile

test/lib/__init__.py

test/lib/admin_connection.py

test/lib/app_server.py

test/lib/box_connection.py

test/lib/colorer.py

test/lib/msgpack-python

test/lib/parallel.py

test/lib/preprocessor.py

test/lib/server.py

test/lib/sql.g

test/lib/sql.py

test/lib/sql_ast.py

test/lib/tarantool-python

test/lib/tarantool_connection.py

test/lib/tarantool_server.py

test/lib/test.py

test/lib/test_suite.py