Debugging and logging in CasperVM/Testnet

[kubaplas]

To get more information for debugging and testing, we can run a code as a last line of endpoint. Of course it will be done by a macro and hidden behind a flag. It will store in storage for a later use:

• Events emitted
• Logs
• Endpoint results If we save this data in a separate Debug/Logging contract, we can also:
• restore cross call trace
• restore exact events and log order

[zie1ony]

I like the idea of producing call-trace in test environment. We should discuss this and produce some technical plan for it.