Implementation of JSONata for secondary validation

[kdp-cloud]

Implement JSONata in CLI. This will provide a secondary validation mechanism for the user to validate the ISA-JSON and possibly patch simple mistakes.

[xiaoranzhou]

I have added a prototype at branch jsonata
https://github.com/elixir-europe/MARS/blob/jsonata/mars-cli/jsonata_validate.py
One improvement could be done related to the result format.

Currently it only export lines of plain text such as:

Validation failed at row 304:
Sample ID: studies/assays/processSequence/parameterValues/unit/REFERENCE to an @id at unitCategories
Expression: @id' in $.investigation.studies.assays.processSequence.parameterValues.unit.$keys()
Result: False