* Cleaned up dependencies on controller manager
* Removed global fields
* Simplified setting up RascsiResponse and RascsiExecutor
* Got rid of remaining raw pointers
* Use references instead of pointers
* Improved encapsulation
* Moved rascsi/rasctl/scsimon/rasdump.cpp to classes (for better testability)
* Moved bus.* to hal folder
* Removed some global variables
* Fixed code redundancies