Add uri field for each telemetry type in opentelemetry plugin, remove old uri field

[JensLoe]

What this PR does / why we need it:

Adds a field for each telemetry type in the opentelemetry clusteroutput-plugin so it matches the fluent bit opentelemetry output, as described in the docs

Which issue(s) this PR fixes:

Fixes #707

Does this PR introduced a user-facing change?

Additional documentation, usage docs, etc.:

[wenchajun]

You should generate the appropriate CRD etc. files.

[wenchajun]

make manifests
make generate

[JensLoe]

I have generated the files by running make manifests and make generate. Also generated the API-docs by running go run cmd/doc-gen/main.go. Let me know if there is anything else i should do (or undo).

[benjaminhuo]

@JensLoe Thank you!