Add filesystem watcher; rename filesystem operations

Enable sending logs to mmds

Update DEV.md

Add subscription for watching changes in filesystem

Update DEV.md

Update DEV.md

Create LICENSE

Enable general logs

Remove goroutine; Add logs

Disable non locked general logger

Change opts struct

Add debug logs

Fix unmarshall pointer ref

Improve error logs for log writer

Enable session log handler; Add checks for MMDS opts fields' validity