Create transfers on the test network

[konradkonrad]

After deployment of the test network #648 we need infrastructure that is able to initiate transfers through the deployed nodes. Other than #652 this issue is about creating some "background noise" of transfers, not a directed scenario for testing special cases.

Mode of operation

• for each test network node
• every $INTERVAL
• randomly chose a target node from the nodes in the token network
• try to send a transfer of amount == random.randint(1, 20)

Tasklist

• find a scheduler (e.g. cron)
• supply the nodes with the list of known testnet addresses
• initiate the transfer via raiden RPCAPI

@ulope please update this issue with more concrete steps before starting

[ulope]

This is mostly handled by the scenario player (#652) with a "random" configuration.

[LefterisJP]

I am closing this in favour of #652