Introduce Coin, a single unspent output
Introduce Coin, a single unspent output

Applies: https://github.com/bitcoin/bitcoin/commit/422634e2f5ac1ff74cd358144cecbac63007adc4

Signed-off-by: FornaxA <c2760c99f0fe404123eacbb6758752294a6ce72d@servitising.org>

ionomy/ion,ionomy/ion,cevap/ion,cevap/ion,cevap/ion,ionomy/ion,ionomy/ion,cevap/ion,cevap/ion,cevap/ion,ionomy/ion,ionomy/ion