cli: add AmountFromValue() and ValueFromAmount()
cli: add AmountFromValue() and ValueFromAmount()

Github-Pull: #19092
Rebased-From: bbf0afade89d948f7ce377b662b0f9b4050db0bc

bitcoinknots/bitcoin,bitcoinknots/bitcoin,bitcoinknots/bitcoin,bitcoinknots/bitcoin,bitcoinknots/bitcoin