[Feature] Please provide way to trigger reports

[wakatara]

One of the things I sorely miss from the emacs ledger mode library is the ability to trigger various reports Balance, Register, payee, account directly from the interface with a key chord. This also allows you to see if you are out of balance and check other small things. It also nicely vertically splits the window to have your ledger on the left side and the report on the right.

I'd love to see this added into this plugin. I imagine it shouldn't be too tricky since you can basically run them in a terminal window separately also (so effectively, it's really a selection and hotkey thing I'd imagine.).