Block construction and Merkle tree visualizer - Proof of competence

[muchai254]

In scope

1. Full toy flow implementation : raw tx -> TXID, then coinbase + 1 or 2 txs in a candidate block, then Merkle root, then block header and target / nonce intuition

Out of scope

1. Organizing of the flows into one cohesive lesson ( the flows at the moment are organized to individual lessons)
2. Markdown nodes explaining in detail what is happening
3. Dynamic fields (right now a lot of the helper functions are hard coded and some of the nodes only take specific values)
4. Support for more complex transactions

These items will be tackled during SoB

[rawBit-io]

accepted as proof of work. closed.