Support for hot reload in DWDS

[jyameo]

• Supporting DDC new module format in DWDS
  • Remove build_daemon_ddc_and_canary_evaluate_test #2512
  • Consolidate FrontendServerDdcStrategyProvider and FrontendServerRequireStrategyProvider Description #2517
  • Supporting new load Strategy and minimal bootstrapper for ddc_library_bundle format #2515
• Migrating DWDS to use DartDevEmbedder API
  • Tracker
  • see doc for API list
  • Re-enable dwds/test/frontend_server_ddc_library_bundle_evaluate_test.dart #2488
  • Implement class_inspection_ddc_library_bundle_test #2534
  • Implement instance_inspection_ddc_library_bundle_test #2537
  • Implement record_inspection_ddc_library_bundle_test #2544
  • implement record_type_inspection_ddc_library_bundle_test #2548
  • implement getModuleLibraries in dart_runtime_debugger #2573
  • implement callLibraryMethodJsExpression in dart_runtime_debugger #2566
  • implement chrome_proxy_service_ddc_library_bundle_test #2563
  • Support hot Restart with DDC library bundle #2561
  • Support hot Reload with DDC library bundle #2562
• Generate DDC library bundle SDKs in Flutter engine

[a-siva]

//cc @natebiggs @nshahan @srujzs

[srujzs]

We may also want to track migrating the bootstrapping here, or at least part of it. It looks like a lot of hot restart is implemented using that bootstrapping, and it's possible we might not need all of that to handle hot reload, but some of it will be needed.