Added jemallocpp_test project (use C++)
and modify strings.h about ffs/ffsl function.

Signed-off-by: shines77 <gz_shines@msn.com>
Merge branch 'next' of https://github.com/shines77/jemalloc-win32 into next

Conflicts:
	.gitignore
added two different __BitScanForward() functions.

Signed-off-by: shines77 <gz_shines@msn.com>
Added some code for Tester.

Signed-off-by: shines77 <gz_shines@msn.com>
Added more test code(for example: original malloc test class and je_malloc test class.)

Signed-off-by: shines77 <gz_shines@msn.com>
Merge branch 'next'