Updates:
- Separate P2P_PORT values for staging, testnet, and mainnet
- Assign different PORT and EVENT_HANDLER_PORT values for on-premise blockchain jobs
- Add on-premise (*_onprem.sh) deploy scripts
- Add on-premise (copy_blockchain_data_onprem.sh) data copy script
- Increase MAX_NUM_EVENT_CHANNELS to 30
- Log stack trace for file handling errors
- Log stack trace for the errors in starting blockchainn nodes