Update metrics package

[trinhdn97]

• Add --metrics and --metrics.expansive cmd flags to enable metrics recording right after node started
• Export metrics via debug port declared in node config file

Debug: # Devnet config for debugging purposes 
  Port: ":6000"

• Expose more types of metrics under multiple endpoints, for examples:
  • https://dev-debug-1.kardiachain.io/metrics
  • https://dev-debug-1.kardiachain.io/metrics/rpc
  • https://dev-debug-1.kardiachain.io/metrics/txpool
  • https://dev-debug-1.kardiachain.io/metrics/db
  • https://dev-debug-1.kardiachain.io/metrics/system
• Pre-register which blockchain-specialized RPC methods to track metric here
• Implement InfluxDB adapter and Prometheus handler for extracting metrics data under Prometheus format

# TYPE rpc_method_account_balance gauge
rpc_method_account_balance 4

# TYPE rpc_method_account_getCode gauge
rpc_method_account_getCode 3

# TYPE rpc_method_debug_traceTransaction gauge
rpc_method_debug_traceTransaction 58

# TYPE rpc_method_eth_blockNumber gauge
rpc_method_eth_blockNumber 25

# TYPE rpc_method_eth_call gauge
rpc_method_eth_call 4

# TYPE rpc_method_eth_chainId gauge
rpc_method_eth_chainId 50

# TYPE rpc_method_eth_gasPrice gauge
rpc_method_eth_gasPrice 1

# TYPE rpc_method_eth_getBalance gauge
rpc_method_eth_getBalance 540

# TYPE rpc_method_eth_getBlockByHash gauge
rpc_method_eth_getBlockByHash 121

# TYPE rpc_method_eth_getBlockByNumber gauge
rpc_method_eth_getBlockByNumber 1377