Alignment with Commonalities 6.0 public release

[FabrizioMoggio]

Problem description
some novelties have been released in Commonalities 6.0 public release

Expected behavior
align with those novelties

Additional context
https://lf-camaraproject.atlassian.net/wiki/spaces/CAM/pages/198443045/Analysis+of+Commonalities+0.6.0

[FabrizioMoggio]

Added

• Added event-notification feature file template by @bigludo7 in #470: Not relevant for this API
• Added Pairwise Pseudonymous Identifier to glossary by @eric-murray in #485: Not relevant for this API
• Recommendation and examples to provide schema context in test definitions by @PedroDiez in #492 : implemented
• Continuous release numbering guidelines in CAMARA API Design Guide by @tanjadegroot in #505 : not relevant

Changed

• Editorial improvements of Guide documents and keyword capitalization by @rartych in #494 and #501 : not relevant
• Linting rules updated by @rartych in #502 : not relevant
• Changed Mandatory Description for date-time string format and updated template files by @PedroDiez in #497:Not relevant for this API

Fixed

• Missing bullet point for Mandatory Errors restored in CAMARA API Design Guide by @rartych in #488 : not relevant
• Editorial improvements of Guide documents by @rartych in #494 : not relevant
• Clarified that the DeviceResponse schema is not mandatory by @eric-murray in #490 : Not relevant for this API
• ErrorInfo scheme unification in CAMARA_common.yaml and event-subscription-template.yaml by @rartych in #506: implemented

[FabrizioMoggio]

ErrorInfo scheme unification in CAMARA_common.yaml and event-subscription-template.yaml by @rartych in camaraproject/Commonalities#506

ErrorInfo must be updated

[FabrizioMoggio]

Recommendation and examples to provide schema context in test definitions by @PedroDiez in camaraproject/Commonalities#492 : not mandatory

References to OAS spec schemas refer to schemas specified in {apiname}.yaml

[FabrizioMoggio]

Fixed with: #201