Add Komodo Assetchains to Agama Desktop

The Agama desktop code comprises of two parts. Backend and UI. This assetchain addition guide will cover both. All the files that need to be changed are linked.

Backend

Asset chains with block rewards (optional)

UI

Please make sure an assetchain is working in Agama before making a PR. Pull requests containing partial information or not working assets/servers will remain unmerged until all requirements are fulfilled.