Add stub ExtMemDbg program

tools/ExtMemDbg/ui.fld

@@ -0,0 +1,73 @@
+# data file for the Fltk User Interface Designer (fluid)
+version 1.0308
+header_name {.h}
+code_name {.cxx}
+Function {make_window()} {open
+} {
+  Fl_Window {} {
+    label {Fennix External Memory Debugger} open
+    xywh {569 262 1110 655} type Double size_range {1110 690 0 0} visible
+  } {
+    Fl_Button watch_button {
+      label {Watch Log}
+      xywh {5 25 80 20}
+    }
+    Fl_Progress ram_usage {
+      label RAM
+      xywh {670 24 435 21} color 62 selection_color 81
+    }
+    Fl_Menu_Bar {} {open
+      xywh {0 0 1110 20}
+    } {
+      Submenu {} {
+        label File open
+        xywh {5 5 70 21}
+      } {
+        MenuItem {} {
+          label Exit
+          callback {exit(0);}
+          xywh {5 5 36 21}
+        }
+      }
+      Submenu {} {
+        label Edit open
+        xywh {10 10 70 21}
+      } {}
+      MenuItem {} {
+        label About
+        callback {Fl_Double_Window* w = make_about();
+w->show();}
+        xywh {15 15 36 21}
+      }
+    }
+    Fl_Input file_path_inputbox {
+      label {file:}
+      xywh {120 25 200 20}
+    }
+    Fl_Table datatable {open selected
+      xywh {5 50 1100 635}
+    } {}
+    Fl_Input kernel_path_inputbox {
+      label {kernel:}
+      xywh {380 25 200 20}
+    }
+  }
+}
+
+Function {make_about()} {open
+} {
+  Fl_Window {} {
+    label About open
+    xywh {950 422 155 55} type Double hide size_range {155 55 155 55}
+  } {
+    Fl_Button {} {
+      label GitHub
+      callback {system("open https://github.com/EnderIce2");}
+      xywh {100 0 55 20}
+    }
+    Fl_Light_Button {} {
+      label {By EnderIce2}
+      xywh {0 35 110 20}
+    }
+  }
+}