Code cleanup and simple test for CLI tools
- Move bitmaps into a new
bitmapsdirectory - test: add
round-trip-testforatobm&bmtoa - atobm: accept single character lines (Fixes
round-trip-testfailure onhlines2) - atobm: close memory leaks
bitmaps directoryround-trip-test for atobm & bmtoa
round-trip-test failure on hlines2)