OperationID review

[stroncoso-quobis]

Problem description
Operation IDs on the YAML doc and feature checks on Gherkin not aligned, should be reviewed.

Expected behavior
Take a close look to the operations and tests, review and fix.

Original comment at #105 (review)

Test file names are not matching in multiple cases not with the operationIds within the API file (e.g. -deleteSession instead of -deleteSessionById That isn't mandatory to fix as there could reasons for other name choices.

But you might want to fix the typo in webrtc-registration-deleteRegsitartionById.feature (should be deleteRegistrationById).

Alternative solution
n/a

Additional context
Release review at #105