Add wp-cli integration

[actual-saurabh]

For oauth & other configuration,

• https://make.wordpress.org/cli/handbook/commands-cookbook/
• https://make.wordpress.org/cli/handbook/commands-cookbook/#distribute-as-a-stand-alone-command

• https://make.wordpress.org/cli/handbook/internal-api/wp-cli-add-command/

  wp yak {subcommand} {args}

[actual-saurabh]

• [ ] wp yak cofig, enter url

• [ ] wp yak config --{branch}={branchname}

• [ ] wp yak config --{remote}={remoteurl}

• [ ] etc

• [ ] wp yak auth, enter url

• [ ] wp yak auth --remote={url}

• [ ] wp yak auth --remote{github/bitbucket}

• [ ] wp yak install --{theme/plugin/mu-plugin}={repo}

etc

• get list of organisations,
• select from,
• get list of repos,
• select from,
• configure repository
• setup webhook, deploy key