Add XDS network

[dangershony]

This is still WIP

Based on https://github.com/sonofsatoshi2020/xds

[thecrypt0hunter]

Some feedback:

1. The data directory has moved from .fullnoderoot/xds/MainNet to .Blockcore/xds/XdsMain. This means people will likely end up needing to re-sync
2. I couldn't copy my wallet across to Blockcore, I guess I'll have to recover from seed words.

[sondreb]

I believe that wallet copy should be responsibility of the UI, not the FN.

[thecrypt0hunter]

What I mean is that the Blockcore XDS daemon won't load when I manually copied my old XDS wallet file over to the Blockcore data directory. So I am going to try to restore from seed words using the new daemon.

[dangershony]

@thecrypt0hunter yes resync is needed anyway because of a bug fix.

Its odd wallet doesn't work, I cant try it myself as well.

[thecrypt0hunter]

This codebase also has the "dust" error.

Detailed here: sonofsatoshi2020/xds#8

[dangershony]

All tests passed on this

[thecrypt0hunter]

Using this API in swagger:

/api/Staking/getStakingNotExpired

I receive this error:

TypeError: Failed to execute 'fetch' on 'Window': Request with GET/HEAD method cannot have body.

It works fine if I call using CURL command