Kernel Source Level debugger support 4/n

- adding DebugSurface allocation and setup
- unit tests refactors:
  - mock kernel with kernel debug option
  - separating fixtures to headers
  - added helper for getting internal-options kernels
    filenames

Change-Id: I7b6f4d46e2ab7cff0da8d5212483f44ae0d4be31

unit_tests/os_interface/windows/wddm_memory_manager_tests.h

@@ -139,7 +139,7 @@ class WddmMemoryManagerFixtureWithGmockWddm {
 
     void SetUp() {
         // wddm is deleted by memory manager
-        wddm = new GmockWddm;
+        wddm = new NiceMock<GmockWddm>;
         ASSERT_NE(nullptr, wddm);
     }
 
@@ -157,7 +157,7 @@ class WddmMemoryManagerFixtureWithGmockWddm {
         wddm = nullptr;
     }
 
-    GmockWddm *wddm;
+    NiceMock<GmockWddm> *wddm;
 };
 
 typedef ::Test<WddmMemoryManagerFixtureWithGmockWddm> WddmMemoryManagerTest2;