Refactoring command line option handling

* Use own function to define and parse command line options

 * Command line options can be defined by config file also

 * --limesdr allows to auto-set required SDR option for LimeSDR

src/libdebug/debug.c

@@ -41,6 +41,7 @@ struct debug_cat {
 	const char *name;
 	const char *color;
 } debug_cat[] = {
+	{ "options", "\033[1;37m" },
 	{ "sender", "\033[1;33m" },
 	{ "sound", "\033[0;35m" },
 	{ "dsp", "\033[0;31m" },