feat(core): add the "add" cli command

[leosvelperez]

Adds a new command for installing and initializing a package: add.

Initialization is done by invoking the <package>:init generator. If the @nx/angular plugin is installed, it will also look for an ng-add generator if the init generator is not found.

Examples usage:

Install the @nx/react package matching the currently installed nx version (for non-core nx plugins, it will install their latest version) and run its @nx/react:init generator:

 nx add @nx/react

Install the version 17.0.0 of the @nx/react package and run its @nx/react:init generator:

 nx add @nx/[email protected]

If the package being added doesn't contain an init generator (or ng-add in Angular workspaces), it will safely handle it by only installing the package and logging a message stating there's nothing to initialize.

Docs: https://nx-dev-git-fork-leosvelperez-core-add-command-nrwl.vercel.app/nx-api/nx/documents/add

Current Behavior

Expected Behavior

Related Issue(s)

Fixes #

[vercel]

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Name	Status	Preview	Updated (UTC)
nx-dev	✅ Ready (Inspect)	Visit Preview	Jan 17, 2024 6:50pm

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✅ Successfully ran 6 targets

• nx affected --target=e2e --base=c43b22dc887b10d527aa3a11e7f7af2a9961e7f8 --head=ed5d5b7c1f40f52f905b1347b40276f215f2ed58 --parallel=1
• nx run-many -t check-imports check-commit check-lock-files check-codeowners documentation --parallel=1 --no-dte
• nx affected --targets=lint,test,build --base=c43b22dc887b10d527aa3a11e7f7af2a9961e7f8 --head=ed5d5b7c1f40f52f905b1347b40276f215f2ed58 --parallel=3
• nx-cloud record -- nx format:check --base=c43b22dc887b10d527aa3a11e7f7af2a9961e7f8 --head=ed5d5b7c1f40f52f905b1347b40276f215f2ed58
• nx documentation --no-dte
• nx affected -t e2e-macos --parallel=1 --base=c43b22dc887b10d527aa3a11e7f7af2a9961e7f8 --head=ed5d5b7c1f40f52f905b1347b40276f215f2ed58

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[isaacplmann]

Docs look good. Is it possible to have nx add @nx/react install the version that matches nx? Instead of whatever the latest version of the plugin is?

[AgentEnder]

Looks good, 2 small changes

[github-actions]

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