Debug build now takes .alf as input instead of .dol (#2360)

* Fix debug build

* Debug build now takes .alf as input instead of .dol

I had to manually remove the following line from symbols.txt for DTK to work:
```
.data = .sbss:0x8074C97C; // type:object size:0x4 scope:local data:byte
```
After that it built OK, and DTK automatically modified all other lines in symbols.txt.

* Fix pragma in header messing up debug optimization level

include/JSystem/JStudio/JStudio/stb.h

@@ -201,11 +201,11 @@ struct TParseData_fixed : public TParseData<T> {
         return TParseData::isValid() && getNext() != NULL;
     }
 
-    Iterator begin() {
+    Iterator begin() const {
         return Iterator(fileCount);
     }
 
-    Iterator end() {
+    Iterator end() const {
         Iterator i(fileCount);
         i += size();
         return i;