ADD: added a lot of ic ids to cmdhf15.c Thanks to Asper for the list.

ADD: added a manufacturer list for hf 14a reader,  only viable when UID is double or triple size.  Thanks to Asper for the list.
ADD: Some changes from Holimans commits.
CHG: some more code clean up.

client/loclass/fileutils.h

@@ -68,4 +68,5 @@ int loadFile(const char *fileName, void* data, size_t datalen);
  * @param fmt
  */
 void prnlog(char *fmt, ...);
+int fileExists(const char *filename);
 #endif // FILEUTILS_H