* Initial structure for RLS
* Adding and building the proto to parse the Any proto for the plugins
* re-org
* Parsing the plugin
* Parsing more into json
* Parsed proto to json
* small cleanup
* Adding prefix
* Added new rls_experimental policy
* build files
* Fixing according to code review comments
* code review comments
* Adding sym changes
* adding action name check
* fixing code review comments.
* fixing unused var error
* clean up
* fixing code review comments
* fixing code review comments
* fixing according to code review comments.
* Remove unnecessary include
* small fix
* generate more, hard-code less
* Moving to using absl::variant
* absl::string_view and absl::variant of vector of std::string are not
playing nice together.
* fixed variant
* Using absl::variant now
* Checkint used plugins
* Refactor Parsing code and separating out Parsing of the plugin
* Fixing code review comments
* code review comments
* fixing code review comments.
* Addressing code review comments
* First end-to-end test
* generated build files
* commit generated files via tools/codegen/core/gen_upb_api.sh
* Fixing rls policy parsing tests
* Restore checks for the test server
* Refactor rls_server
* added keys to rls request
* fixing small logic error
* Complete the test using all the keys
* Separating out RLS test and rls_server thread
* sanity errors
* generated build files
* Complete the rest of the tests and sanity cleanup
* fixing code review comments: using upb_JsonEncode now!
* fixing code review comments
* fixing code review comments
* Fixing code review comments
* misisng fix
* simplifying tests
* simplify tests 2
* Linking in the correct proto for rls_config
* restore metadata check
* Add disable test
* Fixing RLS test and removing environment var that is no longer necessary
* Fixing "Wrong type" type of tests after json parsing change to accept
STRING for number
* adding json_encode.h/c to src/upb/gen_build_yaml.py and generate
necessary files.
* Fixing un-used var error
* fixing sanity errors
* Fixing the upb encoding buffer
* Fixing code review comments.
* Adding nack test for unkonwn plugin proto
* Last bit of code review comments
* fixing unused variable
donnadionne