tools/power turbostat: Make extensible via the --add parameter

Create the "--add" parameter.  This can be used to teach an existing
turbostat binary about any number of any type of counter.

turbostat(8) details the syntax for --add.

Signed-off-by: Len Brown <len.brown@intel.com>

path: root/tools/build/feature/test-compile.c

#include <stdio.h>
int main(void)
{
	printf("Hello World!\n");
	return 0;
}