Create WTX configuration file

[nucash-mining]

Added WTX configuration with URLs and contact information.

[cipig]

for a listing you need to add the coin to the coins file, with all the params needed
look at other PRs on how to do, like: https://github.com/GLEECBTC/coins/pull/1633/files
it also needs an explorer and an icon
SSL/WSS for the electrums needs a domain, it doesn't work with IPs