Inconsistent Service Info specification between WES 1.0.0 and 1.1.0

[vschnei]

While working on WESkit, we noticed inconsistencies between different WES schema versions regarding Service Info.

In WES 1.0.0 (workflow_execution_service.swagger.yaml), the spec uses contact_info_url.

Spec link:
https://github.com/ga4gh/workflow-execution-service-schemas/blob/1.0.0/openapi/workflow_execution_service.swagger.yaml

In WES 1.1.0 (workflow_execution_service.openapi.yaml), the spec refers to a separate external spec for Service Info:
https://raw.githubusercontent.com/ga4gh-discovery/ga4gh-service-info/v1.0.0/service-info.yaml

This effectively means that:

WES 1.0.0 has an embedded service info structure.

WES 1.1.0 delegates Service Info to an external schema/source, requiring separate handling of two files.

Impact:
Maintaining compatibility between WES versions requires managing two different Service Info sources/formats in implementations like WESkit.

Request:
Store the whole schema in one source.