Extension description syntax; extension instantiation, field values and calls with arguments (except strings); example of a simple extension.

String arguments support is supposed to be added in a subsequent commit.

jerry-core/ecma/operations/ecma-get-put-value.cpp

@@ -25,7 +25,6 @@
 #include "ecma-objects.h"
 #include "ecma-function-object.h"
 #include "ecma-objects-general.h"
-#include "ecma-operations.h"
 #include "ecma-try-catch-macro.h"
 
 /** \addtogroup ecma ECMA