• New Nethereum.KeyStore library to load and decrypt key files or encrypt private keys and generate new files.
  As per https://github.com/ethereum/wiki/wiki/Web3-Secret-Storage-Definition
• Protect rpc usage by ensuring "0x" prefix is on all parameters that needed, forcing checks for nulls.
• Removing generic overloads to enforce checks.
• Unit tests migration and configuration for RPC.