Kernel source debugging support 1/n

- new patch token
- program debug compilation flag
- sip kernel new methods for querying bti and debug
surface size

Change-Id: Icaddd15f269c4b76efdf926f2e346aa61cbaae02

runtime/built_ins/sip.h

@@ -58,10 +58,22 @@ class SipKernel {
         return type;
     }
 
+    int32_t getDebugSurfaceBti() const {
+        return debugSurfaceBti;
+    }
+
+    size_t getDebugSurfaceSize() const {
+        return debugSurfaceSize;
+    }
+
+    static const size_t maxDbgSurfaceSize;
+
     GraphicsAllocation *getSipAllocation() const;
 
   protected:
     SipKernelType type = SipKernelType::COUNT;
     std::unique_ptr<Program> program;
+    int32_t debugSurfaceBti = -1;
+    size_t debugSurfaceSize = 0;
 };
 }