gd: split the binaries to package gd-tools

As most linux distribution do, gd only includes the library,
and split all the command line tools into gd-tools, and add
the perl dependcy since one of the tools is a perl script.

Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>