Add deployment.pri

deployment.pri

+unix:!ios:!android {
+    isEmpty(PREFIX) {
+        PREFIX = /usr/local
+    }
+
+    SRCDIR = $${PWD}
+    BINDIR = $${PREFIX}/bin
+    DATADIR = $${PREFIX}/share
+
+    target.path = $${BINDIR}
+
+    desktop.files = $${SRCDIR}/desktop/$${TARGET}.desktop
+    desktop.path = $${DATADIR}/applications
+
+    icon.files = $${SRCDIR}/desktop/$${TARGET}.svg
+    icon.path = $${DATADIR}/icons/hicolor/scalable/apps
+
+    INSTALLS += target desktop icon
+}
+
+export(INSTALLS)