[apps/shared] Namespace shared

Change-Id: I6dec7ce900bb4e801a25c567fe5e242cb744cf29

apps/shared/float_parameter_controller.h

@@ -4,6 +4,8 @@
 #include <escher.h>
 #include "expression_text_field_delegate.h"
 
+namespace Shared {
+
 /* This controller edits float parameter of any model (given through
  * parameterAtIndex and setParameterAtIndex). */
 
@@ -25,4 +27,6 @@ private:
   virtual void setParameterAtIndex(int parameterIndex, float f) = 0;
 };
 
+}
+
 #endif