Improve SDK performance

[shuse2]

Description

SDK must work with high load of transactions on the network, P2P connections with syncing requests and RPC requests from indexer such as lisk-service while maintaining the block executions

Motivation

With new protocol and added feature, SDK becomes more CPU intensive computation.

Tasks

• Update Consensus not to dependent on validator module #7168
• Create lisk application binary interface #7129
• Separate plugin communication and RPC endpoints handling #7135
• Create application interface handler #7134
• Update consensus to use the application binary interface #7130
• Create engine to run as a child process #7131
• Update application to use engine #7132
• Update plugin to use IPC endpoint instead of channel between application #7133
• Integrate updated @liskhq/lisk-db #7128