add new annotation for injecting 2nd-to-last path component into resource configs

[jgraettinger]

Work in progress: #1572

[mdibaiee]

GitHub discussion: #1579

[mdibaiee]

Progress Tracking

• Updating code of connectors to include x-schema-name and x-delta-updates in their resource config schemas: materialize-*: x-schema-name and x-delta-updates annotations connectors#1892
• Implement x-schema-name and x-delta-updates processing in control plane for source captures: flow: x-schema-name annotation for 2nd-to-last resource path #1572
• Implement x-schema-name and x-delta-updates processing in the UI
• Change collection naming convention of captures to include schema with a slash: sqlcapture: include collection schema with a slash in collection name  connectors#1907

[dyaffe]

It would be great to talk through this one before we release it, after standup tomorrow.