Synchronise with Khronos-private Gitlab branch

The maintenance of the conformance tests is moving to Github.

This commit contains all the changes that have been done in
Gitlab since the first public release of the conformance tests.

Signed-off-by: Kevin Petit kevin.petit@arm.com

test_conformance/api/test_clone_kernel.cpp

@@ -18,6 +18,7 @@
 #include "../../test_common/harness/conversions.h"
 #include <sstream>
 #include <string>
+#include <cmath>
 
 using namespace std;