Update Off-Blocks examples

See merge request !13

Updated API definitions to include simple report

See merge request !12

Update Off-Blocks credentials and test suite tweaks

See merge request !10

Tests suite: import certificate, eSeal creation and verification

See merge request !8

Resolve "Response object for signature-validations"

Closes #8

See merge request !9

Update eIDAS Bridge test suite/participants/validatedid/certificates/qec-valid-test-certificate.json

doc: adapted tests according to latest meeting and fixed linting warnings

See merge request !7

Added response structure.

Added following possible values for the indication key: 
- TOTAL_PASSED
- TOTAL_FAILED
- INDETERMINATE