Added CRC Adapter

[onmax]

The adapter is just a exact copy from EURAssetAdapter.ts

[onmax]

@sisou quick question.

The last arg in awaitHtlcFunding in does not match:

• the type definition is onPending?: (tx: Transaction<TAsset>) => any: https://github.com/nimiq/libswap-js/blob/main/src/IAssetAdapter.ts#L48
• The implementation is onUpdate?: (htlc: HtlcDetails) => any,: https://github.com/nimiq/libswap-js/blob/main/src/EuroAssetAdapter.ts#L67

The error was not being triggered before, but now with the new class definition I get it:

export class FiatAssetAdapter<Asset extends FiatSwapAsset> implements AssetAdapter<Asset> {

[sisou]

Hmm. It technically is correct though, because Transaction<Asset.EUR> = HtlcDetails. It's probably because TS doesn't work via the FiatSwapAsset union...

[sisou]

For now, can you try changing the implementation from htlc: HtlcDetails to htlc: Transaction<Asset.EUR | Asset.CRC>?

[onmax]

For now, can you try changing the implementation from htlc: HtlcDetails to htlc: Transaction<Asset.EUR | Asset.CRC>?

I found another solution where Typescript does not complaint and it is the minimum amount of changed lines.

[sisou]

TODO: Update to released package version once nimiq/oasis-api-js#1 is merged