Clean up physical coupling

Narrow the use of #include directives in hwui, replacing with forward
declarations where straightforward. Speeds compiles; doesn't do any
restructuring of code.

Change-Id: Icac2baffb5896f55d8c6718e9bd9d4bfa02d3ca0

libs/hwui/ProgramCache.h

@@ -25,7 +25,6 @@
 
 #include "Debug.h"
 #include "Program.h"
-#include "Properties.h"
 
 namespace android {
 namespace uirenderer {