Specify which meltano plugins to install

[jlloyd-widen]

Under the current feature set you can only run a meltano install command but you can't add any arguments to, for example, narrow the scope of the install to a specific tap, target, or transformer.

It would be nice to be able to add these arguments to the meltano_install_op in the same manner as it's possible to add arugments to the meltano_run_op.