36556 Fix usage test to use local usage

36560 [flutter_tools] Add some useful commands to the README.md

36564 Make sure fx flutter attach can find devices

36569 Some minor cleanup for flutter_tools

36570 Some minor fixes to the tool_coverage tool

36585 Place build outputs under dart tool

36598 Expose functionality to compile dart to kernel for the VM

36679 add line-length to flutter format command line

36727 Add missing config to create

36773 Expose build-dir config option

36774 Parameterize CoverageCollector with a library name predicate

36785 [flutter_tool] Clean up usage events and custom dimensions