kfdtest: Add ShaderStore.cpp/hpp

Initial commit for ShaderStore.hpp. Will contain consts char*'s for
all shaders used within KFDTest.

The LLVM assembler now takes care of the correct instructions to be used
for various GFX versions using directives embedded into the shader assembly.

Signed-off-by: Graham Sider <Graham.Sider@amd.com>
Change-Id: I2887a03b33d5c2cc382e4f96c2bc3e067715ab54

tests/kfdtest/src/KFDBaseComponentTest.hpp

@@ -35,6 +35,7 @@
 #include "OSWrapper.hpp"
 #include "KFDTestUtil.hpp"
 #include "Assemble.hpp"
+#include "ShaderStore.hpp"
 
 //  @class KFDBaseComponentTest
 class KFDBaseComponentTest : public testing::Test {