data-profiling

Describe the bug
data docs columns shrink to 1 character width with long query

To Reproduce
Steps to reproduce the behavior:

1. make a batch from a long query string
2. run validation
3. render result to data docs
4. See screenshot
   <img width="1525" alt="Data_documentation_compiled_by_Great_Expectations" src="https://user-images.githubusercontent.com/928247/103230647-30eca500-4

Follow the implementation example of ingestion/tests/integration/ometa/test_ometa_database_service_api.py to implement the testing of the Python client for PipelineService.

Add type hints to as code documentation, IDE hints and possibly catching errors. Add flake8-annotations to pre-commit and enable mypy in CI.

Describe the bug
Currently, we have places in project where paged responses are returned with hardcoded hasNext and total properties. Need to fix this and return valid values to frontend. Frontend need to use these values instead of current solution