Add a MerkleBlock construction #268
This is a port of the bitcoin-core
These are useful for SPV clients that wish to verify that a transaction is
This is a better attempt than my previous PR #19.
Note regarding the doc examples, I used
2 times, most recently
May 28, 2019
Just copy pasted it from the tests but using the FromHex trait looks better as an example.
Also I will change the examples a bit because the