Develop Municipal Node Module/Plugin

[lancekrogers]

1. Develop Municipal Node Module
   1. A Relay node that validates transactions containing assets issued by the owner of the node.
   2. This node will take transaction data, feed it to a script, the script will output something equivalent to a 'yes' or 'no'.
      1. If yes
         1. node will sign the transaction
      2. If no
         1. the transaction id will be stored in a deletion queue, which is used to minimize the effects of spam transactions