(MOD) Refined Var, Array, CatlogMsg, CatlogSender, Status

This is the very first version that pass the compiler.  Though it has lots things were made for testing, such as commenting problematic source code to avoid irrelevant errors.  For test.c, everything is working fine.  Congrats!

String/src/string.c

@@ -38,7 +38,7 @@ Status String_Literalise(String *inst, String *store)
   fails(inst, UnavailableInstance);
 }
 
-bool   String_Equal(String *arr1, String *arr2)
+bool   String_Equals(String *arr1, String *arr2)
 {
   fails(inst, UnavailableInstance);
 }