Purpose:

ddev analyze runs dartanalyzer, which does not leverage the analysis server
ddev format may run dartfmt (unless the package depends on dart_style)
in several places, ddev will run other dart executables via pub run
As of Dart 2.10 (https://medium.com/dartlang/announcing-dart-2-10-350823952bd5), there exists a new unified dart CLI with improved options for analysis, formatting, and running packages. The primary benefit to this new CLI is dart analyze which (like tuneup) uses the analysis server, which is important because the now-outdated dartanalyzer suffers from several deficiences and bugs because it doesn't use the analysis server.

Note: dart_dev also provides a tuneup-based option for analysis. There does still seem to be some functionality in tuneup that doesn't exist in dart analyze, but its future is unclear. We can probably leave the tuneup tool in place, but recommend that the default AnalyzeTool be used once it is updated to use dart analyze.

Acceptance Criteria

• Update AnalyzeTool to have the option to run dart analyze instead of dartanalyzer
• Update FormatTool to have the option run dart format instead of dartfmt (this shouldn't change the scenario when dart_style is used)
• Update any usage of pub run to dart run/ except dart test
• Update any usage of pub global to dart pub global
• Update any usage of pub <get|upgrade> to dart pub <get|upgrade>
• Update any applicable references to outdated CLI commands in the README and documentation guides