Improve AcAC to ActorMonitoring

[xis19]

This is a draft of ActorMonitoring code.

The improvements:

• Different levels of information about ACTORs
• More information about running ACTORs when ACTOR_MONITORING level set to be FULL
• The ACTOR debugging information is generated and compiled into code rather than external dependencies

The missing parts:

• Storing ACTOR status into log
• ACTOR information with RocksDB
• Possible incomplete stack

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