Extend Plutip config

[mikekeke]

Plutip needs several services to be started and ready before it can run test cases. Those services requre some time before they up and ready. Now timeouts and polling periods are hardcoded - need to extract them into config.

Also need to make configurable delay, after which test runner collects final Value from test wallets.

Things that should be configurable:

• awaiting of cardano node - polling period and timeout
• awaiting of chain-index - polling period and timeout
• delay between test contract execution and collection of final Value's from test wallets