performance model: cleanups to report generation
	eliminate some hard-coded precisions
	smarter choice of output precision and units
	make printing of bsize controllable by caller

Signed-off-by: Mark Kampe <mark.kampe@gmail.com>
performance model: SimCPU enhancements
	added execute (general instructions per second) method
	added methods for commonly accelerated functionality
		with preliminary calibrations
	now has a built-in unit test module
	moved makeCPU(dict) into SimCPU.py

Signed-off-by: Mark Kampe <mark.kampe@gmail.com>
performance model:	reorg of SimDisk.py
	moved makedisk helper into this module
	moved disktest (now dict driven) into this module
	main now uses makedisk and test functions
	removed DOS mode newlines (sorry)

Signed-off-by: Mark Kampe <mark.kampe@gmail.com>
performance model: refactoring of SimFS.py
	move dict-driven makefs function into this module
	move dict-driven test function into this module
	add main routine to this module for testing

Signed-off-by: Mark Kampe <mark.kampe@gmail.com>
performance model: refactor FileStore.py
	move dict driven test function into this module
	move dict driven make helper into this module
	add a __main__ method for unit testing
	eliminate DOS carriage returns (sorry)

Signed-off-by: Mark Kampe <mark.kampe@gmail.com>
performance model: refactor Rados.py
	bring dict driven make function into this module
	bring dict driven test function into this module
	add a __main__ function for unit testing
	remove DOS carriage returns (sorry)

Signed-off-by: Mark Kampe <mark.kampe@gmail.com>
performance model: refactor SimIFC.py
	add dict driven make helper functions
	add dict driven test helper functions
	add __main__ for unit testing

Signed-off-by: Mark Kampe <mark.kampe@gmail.com>
performance model: test driver simplification
	exploit the newly refactored simulations
	all the make helpers are now in the simulation modules
	all the test helpers are now in the simulation modules
	test.py is now just parameters and calls to helpers
	(making it much easier to write/update scenario drivers)

Signed-off-by: Mark Kampe <mark.kampe@gmail.com>
performance model: document new helper functions

Signed-off-by: Mark Kampe <mark.kampe@gmail.com>