Starting to implement the hooks for interfacing to QRA mode.

Pass file path for peg-128 files to fast_decode().  (Inelegant, but it works.)


git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6741 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

Modes.cpp

@@ -21,7 +21,8 @@ namespace
     "Echo",
     "ISCAT",
     "JTMSK",
-    "MSK144"
+    "MSK144",
+    "QRA"
   };
   std::size_t constexpr mode_names_size = sizeof (mode_names) / sizeof (mode_names[0]);
 }