Fix Bank of Corda, Trader and Notary demos.
In Notary demo, introduce deployNodes task, that deploys all three types of Notary into different directories (so there is no need to do clean, when you want to run them one after another).
* Rename raft-notary-demo project to notary-demo
* Refactor serialisation filtering to allow BFT SMaRt to work, it no longer relies on the jdk.serialFilter system property
* In NodeBasedTest remove whitespace in node directory names for consistency with cordform and driver