Format Amount

[Walledgarden]

This feature would give library users the option to format a tip in the currently know tip.cc format by calling a function in the amount class. Preferably, at client initalization there is a new option, which allows to pass a currencies-emojis map to the client, which would be used for this feature too (ex. BTC => <BTC:12312312312312312>...). The format for tips would be as follows

<#Amount>.toString(withUsd defaults to true)

<emojiName:emojiId> currencyAmount currencySymbol (≈ $usdValue)
currencyAmount would represent the this.humanValue.toFixed(currency.format.scale)