Match FreshBooks receipts to Bloomerang gifts

**Objective:** Compare money received in FreshBooks with gifts recorded in Bloomerang from `{date-from}` to `{date-to}` and report mismatches. FreshBooks business: `{company}` (optional).

**Step 1: Read both sides**

Call `freshbooks-get-payment` (FreshBooks server) with `date.from` and `date.to`. Call `freshbooks-get-other-income` (FreshBooks server) with the same dates, since donations are often booked as other income. Call `bloomerang-get-transaction` (Bloomerang server) with `date.from` and `date.to`.

**Step 2: Match**

Pair a FreshBooks record with a Bloomerang transaction when the `amount` is equal and the dates are within 3 days. For payments, use `freshbooks-get-client` with `id` set to `client-id` and `bloomerang-get-constituent` with `account-id` and `primary-email` to confirm it is the same person. Where several records share an amount, prefer the one whose donor email matches.

**Step 3: Report**

Three lists: matched pairs, FreshBooks receipts with no Bloomerang gift, and Bloomerang gifts with no FreshBooks receipt. Give date, amount, currency, who, and the system it appears in. End with the net difference per currency.

**Rules & Guidelines:**

* FreshBooks tools: `freshbooks-get-payment`, `freshbooks-get-other-income`, `freshbooks-get-client`. Bloomerang tools: `bloomerang-get-transaction`, `bloomerang-get-constituent`.
* Read only. Do not create or change anything on either server.
* Do not assume that a payment on a customer invoice is a donation; report it as unmatched and let a person judge.

**Validation:**

* If either side returns nothing for the range, say which and stop.
* Treat refunded Bloomerang transactions (`refunded` true) as separate and list them apart.