Remove outdated submodule `src/vcap-common/` with Gemfile for dependency management

cf-registrar-bundle-for-identity contains Gemfile and Gemfile.lock needed
by the identity projects (login, pivotal_login, saml_login, uaa) in order
to use cf-registrar

[#64198690]
Bump src/gorouter/src/github.com/cloudfoundry/gorouter

Bump cloudfoundry/gorouter:
  Dmitriy Kalinin:
     prepare to fix cf-release gorouter packaging ( Travis Unknown )
     Added x-request-start header for each request ( Travis Unknown )
  Kris Kelly:
     Log request even if proxy exits early or panics ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16672791 )
     AccessLogRecord.emit works without RouteEndpoint ( Travis Unknown )
     Move creation of complete access logger to function ( Travis Unknown )
     Add test for AccessLogRecord.Emit, happy path ( Travis Unknown )
     Fix flaky test in access_log ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16626274 )
     Moved fakeFile into test_util package ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16623004 )
     Test that proxy.go logs ( Travis Unknown )
  Abhijit Hiremagalur:
     Handle absence of fields that might be missing in panic ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16561799 )
     Avoid relying on message format in access logger test ( Travis Unknown )
     Characterize AccessLogRecord#makeRecord ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16554380 )
  Tony Hansmann:
     Merge pull request #20 from rogerluo410/master ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16559509 )
  Ruth Byers:
     Inline conditional that returns bool ( Travis Unknown )
     Avoid single-letter names for readability ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16544154 )
     Introduce Null Object for AccessLogger ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16543211 )
     Avoid repeating tests for CreateRunningAccessLogger in proxy_test ( Travis Unknown )
     Rename tests to match function being tested ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16541708 )
     Forgot to register gocheck with testing in new package ( Travis Unknown )
     Extract registryMessage into own file ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16501762 )
     Make router package and files match ( Travis Unknown )
     Copy specs for extracted behavior ( Travis Unknown )
     Move CreateRunninAccessLogger into access_log package ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16490752 )
     Extract factory to create running logger ( Travis Unknown )
     Use longer variable names for clarity ( Travis Unknown )
     Move AccessLogRecord into its own file ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16481513 )
     Move AccessLogger and friends into own package ( Travis Unknown )
     Extract interface for AccessLogger ( Travis Success: https://travis-ci.org/cloudfoundry/gorouter/builds/16480696 )
  rogerluo410:
     updated license and notice files ( Travis Unknown )

Signed-off-by: Dmitriy Kalinin <dmitriy@pivotallabs.com>
Bump src/cloud_controller_ng

Bump cloudfoundry/cloud_controller_ng:
  Dmitriy Kalinin:
     added instrumentation for DeaPool and StagerPool ( Travis finished: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/18166991 )
     Track DEA, Loggregator, and HM9000 client calls in newrelic ( Travis Success: https://travis-ci.org/cloudfoundry/cloud_controller_ng/builds/18165094 )