Add PriceSubmitter contract to genesis for scdev network
Add bytecode of PriceSubmitter contract to the genesis config.
In addition fix the startup script
scdev.sh the following:
- printouts (echo) before starting nodes should print ports 9660, ..., 9666 (instead of 9650, ..., 9656)
- on nodes 1-3 the set
--bootstrap-ips=127.0.0.1:9661(currently set wrongly on port 9651 and the network does not bootstrap)