add: snap .desktop file

[ci skip]

Author: GerryFerdinandus

snap/gui/bittorrent-tracker-editor.desktop

@@ -0,0 +1,10 @@
+[Desktop Entry]
+Version=1.0
+Name=Bittorrent tracker editor
+Comment=Software for add or remove tracker from torrent files.
+Exec=bittorrent-tracker-editor
+Icon=${SNAP}/meta/gui/bittorrent-tracker-editor.png
+Terminal=false
+Type=Application
+Categories=Utility;
+Keywords=bittorrent;tracker;editor;