Invoicing has been modified to account for an egress discount ratio,
which specifies the fraction of the amount of data stored that egress
usage should be discounted.
The egress discount ratio measures discounted egress units per storage
unit-months, so a ratio of 0.5 with 2 MB-months of storage would
discount 1 MB of egress.
Resolvesstorj/storj-private#224
Change-Id: I43d7d6719391c303712c082709aef77249c65f62
- only applies to storjscan transactions
- applies a 10% bonus by default
- bonus transactions have a distinct source "type" to allow for
filtering on the frontend
Fixes: https://github.com/storj/storj/issues/5702
Change-Id: I32d65f776c58bcb41227ff5bc77a8e4cb62a9add
