Integrate with beancount

[criccomini]

ORA's ledger layer is loosely modeled after beancount's. ORA uses the ledger for investments in a similar to manner to the documentation here:

https://beancount.github.io/docs/trading_with_beancount.html

It was always my intent to eventually write a plugin for beancount to allow plaintext accounting users to get ORA suggestions on their portfolios in beancount.

[criccomini]

Other relevant docs:

https://beancount.github.io/docs/calculating_portolio_returns.html https://beancount.github.io/docs/settlement_dates_in_beancount.html https://beancount.github.io/docs/a_proposal_for_an_improvement_on_inventory_booking.html