Mock command PHPDoc so we can reparse it
Mock command PHPDoc so we can reparse it

This enables `default` and `options` are used when supplied as the third
argument to `WP_CLI::add_command()`

At some point, this storing of command metadata in PHPdoc needs to be
dealt with. But not yet.

aaemnnosttv/wp-cli,trepmal/wp-cli,gitlost/wp-cli,trepmal/wp-cli,nyordanov/wp-cli,2ndkauboy/wp-cli,gitlost/wp-cli,GaryJones/wp-cli,rodrigoprimo/wp-cli,2ndkauboy/wp-cli,miya0001/wp-cli,miya0001/wp-cli,aaemnnosttv/wp-cli,GaryJones/wp-cli,nyordanov/wp-cli,rodrigoprimo/wp-cli,gitlost/wp-cli,trepmal/wp-cli,aaemnnosttv/wp-cli,nyordanov/wp-cli,GaryJones/wp-cli,miya0001/wp-cli,2ndkauboy/wp-cli,rodrigoprimo/wp-cli