* Updates to the v5 schema, by delegating to the statediff plugin (as of this branch cerc-io/plugeth-statediff#15), replacing the builder code.
* Adds basic CI workflows
* Updates Docker config and docs, cleans up some things
Reviewed-on: #1
* Add helper scripts for processing and importing statediffed data
* Add instructions to use the helper scripts
* Update scripts to use arrays
* Update README with bad row output example
* Remove delimiter option from xargs command
