Support multiple actions, inspect command, --quiet, stop execution immediately on failure

[fcremo]

This PR:

• adds the orc inspect plumbing command
  • orc inspect component installed-files <component> prints the files installed by a component
  • orc inspect config prints the generated configuration and replaces orc dumpconfig
• allows to specify multiple actions for various commands, e.g. orc install <component1> <component2>
• (not user facing) allows to define nested subcommands more easily
• ensures that when an action fails execution stops as soon as possible and no forther actions are started
• orc components shows branch name and commit
• adds a --quiet flag which reduces verboseness

[aleclearmind]

orc inspect component installed-files revng gives me many blank lines.

Is this expected?

For the rest, it looks mostly harmless (cit.). I like orc inspect a lot!

[fcremo]

orc inspect component installed-files revng gives me many blank lines.

Is this expected?

For the rest, it looks mostly harmless (cit.). I like orc inspect a lot!

I forgot to cherry pick a commit which fixed this, I just pushed it