67485 [flutter_tools] remove globals from compile and devices (cla: yes, tool)

67493 [flutter_tools] support powershell style help request (cla: yes, tool)

67530 [flutter_tools] remove stray print from engine locator (cla: yes, tool, waiting for tree to go green)

67552 [flutter_releases] Flutter 1.22.1 Framework Cherrypicks (cla: yes, engine, f: material design, framework, team, tool)

67572 Revert “[flutter_tools] remove all pub caching logic” (cla: yes, tool)

67576 Respect –enable-software-rendering flag on iOS simulators (cla: yes, tool, waiting for tree to go green)

67581 [flutter tools] Add a DelegatingLogger class (cla: yes, tool)