Added patch for wezterm

Added new method for getting seqno field for the pane, which indicates
changes that happened on the pane, storing and comparing this field in
lua config, helps with that task for identifying tabs, which are still
active with those, where activity has stopped already.

x11-terms/wezterm/wezterm-20230712-072601-add-get_seqno-method.patch

@@ -0,0 +1,17 @@
+diff --git a/lua-api-crates/mux/src/pane.rs b/lua-api-crates/mux/src/pane.rs
+index f0d919e16..0a16b03d3 100644
+--- a/lua-api-crates/mux/src/pane.rs
++++ b/lua-api-crates/mux/src/pane.rs
+@@ -409,6 +409,12 @@ impl UserData for MuxPane {
+             let pane = this.resolve(&mux)?;
+             Ok(pane.tty_name())
+         });
++
++        methods.add_method("get_seqno", move |_lua, this, ()| {
++            let mux = Mux::get();
++            let pane = this.resolve(&mux)?;
++            Ok(pane.get_current_seqno())
++        });
+     }
+ }
+