bin_header_debug: add implementation of C library functions

	** this is patch #4 in bin_header_debug series of patches

	bin header does not include C libraries in it's build, such as
	string and ctype.
	- add implementation of C library functions (string and ctype)
	  that will be used in future patches.

Change-Id: I5f1687cd3afff779e226ceec712bef78c6ed54f1
Signed-off-by: Bassel Saba <basselsa@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/19661
Tested-by: Star_Automation <star@marvell.com>
Reviewed-by: Omri Itach <omrii@marvell.com>
3 files changed