Added /intype setting

Seperate settings for showing contact typing in UI (/intype), and
as desktop notifications (/notify typing).

src/preferences.c

@@ -300,6 +300,19 @@ prefs_set_flash(gboolean value)
     _save_prefs();
 }
 
+gboolean
+prefs_get_intype(void)
+{
+    return g_key_file_get_boolean(prefs, "ui", "intype", NULL);
+}
+
+void
+prefs_set_intype(gboolean value)
+{
+    g_key_file_set_boolean(prefs, "ui", "intype", value);
+    _save_prefs();
+}
+
 gboolean
 prefs_get_chlog(void)
 {