Grammar - first steps [ci skip]
Grammar - quoted expressions as one [ci skip]
Added tokens to expressions grouping
Grammar - quoted expressions as one [ci skip]
Tokens grouping update
Grammar - brackets support added [ci skip]
New test added
Merge branch 'master' into better-input-parser
Commas and dots parsing in grammar, not in function, some behavioral tests added, refactoring.
Merge branch 'master' into better-input-parser

Conflicts:
	indor/src/test_runner.py
Fix json sending problem.