updating url use v1

[blublinsky]

Why are these changes needed?

As we are gearing to v1 this PR updates API server URLs to reflect V1

All proto files are updated to use V1 in URL. Additionally test files and readme were updated to reflect this change

Related issue number

Checks

• [ x] I've made sure the tests are passing.
• Testing Strategy
  • Unit tests
  • [ x] Manual tests
  • This PR is not tested :(

[blublinsky]

@z103cb, @tedhtchang, @astefanutti pls, take a look

cc: @kevin85421

[z103cb]

LGTM

[tedhtchang]

@blublinsky 4 file still have the the v1alpha2 curl examples. Do we need to change these?
./test/service/service:curl 'localhost:8888/apis/v1alpha2/namespaces/default/services'
./test/service/service:curl 'localhost:8888/apis/v1alpha2/services'
./test/service/service:curl -X DELETE localhost:8888/apis/v1alpha2/namespaces/default/services/test-v2
./test/service/serviceV1:curl -X POST 'localhost:8888/apis/v1alpha2/namespaces/default/services'
./test/service/serviceV2:curl -X POST 'localhost:8888/apis/v1alpha2/namespaces/default/services'
./test/job/query:curl -X GET 'localhost:8888/apis/v1alpha2/namespaces/default/jobs'
./test/job/query:curl -X GET 'localhost:8888/apis/v1alpha2/jobs'
./test/job/query:curl -X GET 'localhost:8888/apis/v1alpha2/namespaces/default/jobs/job-test'
./test/job/query:curl -X DELETE 'localhost:8888/apis/v1alpha2/namespaces/default/jobs/job-test' \

[blublinsky]

Thanks @tedhtchang for catching this. fixed

[blublinsky]

@kevin85421 I think this one is ready for commit

[kevin85421]

I rerun the failed CI tests. I will merge this PR when CI passes.