Standardize bespoke test reporting within flutter/flutter test.dart entrypoint #145482

This is a tracking issue for the effort to standardize bespoke test reporting in flutter/flutter test.dart.

• Refactor of suite runner logic in order to separate runner logic from testing
  • change naming convention of "shard" to "suite"
  • web tests class creation and refactor Create web tests suite & update utils #146592
  • Bespoke test refactoring
    • Add_to_app_life_cycle_tests Refactor add_to_app_life_cycle_tests #145546
    • Web_long_running_tests Refactor web long running tests #145776
    • flutter_plugins Refactor flutter_plugins #145870
    • skp_generator Refactor skp_generator_tests #145871
    • realm_checker Refactor realm_checker #145905
    • customer_testing Refactor customer_testing #145911
    • fuchsia_precache Refactor fuchsia_precache #145978
    • Docs Refactor docs #145998
    • Analyze Refactor analyze #146138
    • verify_binaries_codesigned Refactor verify codesigned #146450
    • framework coverage tests Refactor framework coverage tests #146210
    • framework tests Refactor framework + test harness tests #146213
    • tool tests Refactor tool tests #146217
    • android_preview_tool_integration_tests Refactor android preview tool integration tests #146518
    • tool_host_cross_arch_tests
    • web_tests Create web tests suite & update utils #146592
    • web_canvaskit_tests Create web tests suite & update utils #146592
    • web_skwasm_tests Create web tests suite & update utils #146592
• Apply package:test concepts to bespoke tests
• Parse tests to present results in similar format to Mac Build Integration tests there is also already a parser for test results: https://cs.opensource.google/flutter/flutter/+/master:dev/bots/tool_subsharding.dart;l=34
• Refactor tests which run flutter test multiple times so that the test results are not overwritten
  • _runWebLongRunningTests