Merge pull request #1 from gwhere/master

Added myformat.c
support for bytemap and free space checking
rough draft of format program
begun implementing files
filenames now in root
Merge pull request #2 from cjhanrahan/master

format program kinda done
support for 1 block files
Merge pull request #3 from cjhanrahan/master

support for 1 block files
test write from unix
testdisk.h
added other header files
changed data size
test program done
added multi-block support to filesys.c