Add a refresh operation for resources and schemas

[imsdu]

Motivation
In some cases, we want to update a resource not because it has been updated itself but because some of it context (project configuration, imports) changed.
In this case, we don't need to pass the latest payload to refresh this resource.

Acceptance criteria

• This new operation can be applied to schemas and resources
• The resources/write permission is needed
• The endpoints are:

PUT /v1/resources/{org_label}/{project_label}/{schema_id}/{resource_id}/refresh
PUT /v1/schemas/{org_label}/{project_label}/{schema_id}/refresh

• The behaviour is the same as the update operation
• documentation & tests to be added