Simulated block-chain examples

[JFixby]

@s-tikhomirov
This is an example code/setup to build a test/simulation blockchain for Bitcoin.

[JFixby]

Here is the framework to build it: https://github.com/JFixby/coinharness
Here is another example of this framework usage for Decred: https://github.com/JFixby/dcrregtest

[JFixby]

• Example log: https://travis-ci.org/jfixby/btcregtest