add patch for pd-gui.tcl to load netpd at start

files/pd-gui.tcl.patch

+index 5a772dbc..ba309ab5 100755
+--- a/tcl/pd-gui.tcl
++++ b/tcl/pd-gui.tcl
+@@ -823,7 +823,7 @@ proc main {argc argv} {
+         # the GUI is starting first, so create socket and exec 'pd'
+         set ::port [::pd_connect::create_socket]
+         set pd_exec [file join [file dirname [info script]] ../bin/pd]
+-        exec -- $pd_exec -guiport $::port &
++        exec -- $pd_exec -guiport $::port -open ../netpd/main.pd &
+         # if 'pd-gui' first, then initial dir is home
+         set ::filenewdir $::env(HOME)
+         set ::fileopendir $::env(HOME)
+