Make deployment faster

[carpawell]

Is your feature request related to a problem? Please describe.

I'm always frustrated when I have to wait for deployment for minutes, not seconds. Most of the deployment steps are simple and do not require complex computations. In fact, most of the time nodes just do nothing waiting next block.

Describe the solution you'd like

General rule: do not put step's TXs to the pool one by one, more of them can be sent to RPC node and accepted in a single block.

Have some suggestions (must be reviewed):

1. Parallelize initial preparation (e.g. roles can be set at a time), most of them do not depend on each other (GAS distribution is an exception)
2. Parallelize contract deployment, most of them do not require the others' hashes (also it is possible to deploy the Proxy contract and replenish it in a single transaction)

Describe alternatives you've considered

Make it even more complex but faster: do not parallelize request sending but place steps in a single transaction.

Additional context

#410 is the first try to make it faster. Saved some blocks in certain situations, made running our development envs more convenient.