options to simplify output of listing

[lelutin]

the "list" action needs to have arguments to:

• simplify output, so that only note names are printed out
• print a list of tags / books

Those listings will be very useful to implement shell completion

Command line arguments for those options could be explicit only, like so, respectively:

• --only-names : should be possible to combine with filtering arguments
• --list-tags : should be used alone
• --list-books : should be used alone

[lelutin]

also add an option to the "version" action to make it output only the note application version / app name

• --simple-output: show only version tag
• --only-appname

[lelutin]

options to the "version" action could be useful to automate interaction with scripts, to determine if the note app advertises the desired functions through DBus.

[lelutin]

also:

the main script should check for a new option that lists available action names. this would make it easier to autocomplete action names.

the option could be: --list-action-names