Update CLI and template packages

update yarn

1. Follow step-by-step guide to upgrade Yarn to Yarn Berry (Yarn 2).
2. Add yargs with the yarn add yargs command.
3. Update lerna: yarn up lerna
4. Update lerna-changelog: yarn up lerna-changelog
5. Update yargs: lerna exec -- yarn up yargs

update CLI packages with yarn

yarn upgrade

Note: some CLI packages are also used in the templates and can be updated accordingly.

update templates

• on a generated project with all the components run an automatic migration tool, like ng cli, and update template files
• compare the latest project from a framework with existing templates in the CLI (with WinMerge) and update template files

update angular templates

• compare ng new with ig new
• ng update for project with all components and then move changes to templates

Notes: typescript update for CLI and all framework templates