Change angle include Imath to quote include, remove multiMediaReference prototype (#1276)

* Change quote includes to angle includes

* Remove prototype multiMediaReference

Co-authored-by: Nick Porcino <[email protected]>

Author: 2 people

src/opentimelineio/multiMediaReference.cpp

@@ -10,7 +10,7 @@
 #include "opentimelineio/typeRegistry.h"
 #include "opentimelineio/version.h"
 
-#include <ImathBox.h>
+#include "ImathBox.h"
 
 #include <list>
 #include <type_traits>