Misc. Feature Dump

[abejgonzalez]

This PR does a couple of things:

• Creates a folder for each img/bin output (and adds associated metadata files like the Linux config to it)
• Moves some "Applying..." output to the debug logger
• Images are deleted then re-generated when the base image (the image that is copied and modified) is modified
• Add a new out-dir config item that specifies the name of the output directory to put the img/bin into (basically <image-dir>/<out-dir>/{*.img,*.bin})
• Fixes an exception not found error when doing FireSim installs and the path is incorrect
• Adds a new action called print_deps that prints out the items that forced a rebuild (useful for debugging).

This was tested with (in all cases things worked nicely - things weren't rebuilt unnecessarily):

• Protobuf benchmark suite
• My personal FireMarshal workloads
• fullTest.py (except for the tests that stall in Spike - due to another issue w/ Linux)