Add desktop file for FLTK new-session-manager exe

meson.build

@@ -63,9 +63,11 @@ if fluid.found() and fltkdep.found()
     executable('new-session-manager',
         sources: ['src/session-manager.cpp', 'src/debug.cpp', 'src/Endpoint.cpp', 'src/Thread.cpp', 'src/FL/Fl_Scalepack.C'],
         dependencies: [fltkdep, liblodep, threaddep],
-        install: true,
+        install: true,        
         )
 
+    install_data('src/new-session-manager.desktop', install_dir : get_option('datadir') / 'applications')
+
     meson.add_install_script('sh', '-c',
         'ln -sf new-session-manager ${DESTDIR}@0@/@1@/non-session-manager'.format(
             get_option('prefix'), get_option('bindir')))

src/new-session-manager.desktop

@@ -0,0 +1,9 @@
+[Desktop Entry]
+Type=Application
+Name=New Session Manager Legacy GUI
+Comment=Legacy FLTK GUI to manage sessions with NSM.
+Exec=new-session-manager
+Terminal=false
+StartupNotify=false
+Version=1.0
+Categories=AudioVideo;Audio;