Function registerCBOREncoders

Register CBOR encoders for all types. This is safe to do as multiple encoders for the same CBOR tag is not a problem.

Currently, this auto-registers the following encoders:

• AccountAddress: For encoding Concordium account addresses in CBOR format
• TokenAmount: For encoding protocol-level token amounts in CBOR format
• CborMemo: For encoding protocol-level token memos in CBOR format