add spread/3 to portion out a given amount without a remainder #175
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From the discussion in #173, and for my own project, I've been working on a 'spread' function that will distribute money evenly across a given list of portions. After several code iterations, this may be clean enough to be part of
:ex_moneyproper.The portions can be Money.t(), or numbers as used by @coladarci, or a single integer to split it evenly. It takes inspiration from @Wigny's recursive solution as well.
The tests are split across 3 files because they are property tests and being in separate modules lets them make use of
async: true. Even so, the tests now take ~4s to run instead of ~1s.