make custom Anycubic touchscreen implementation an ExtUI module

Start migration to ExtUI module. We do not yet change much of the custom
logic, but this brings us closer to upstream and allows use of some
integration hooks with less patching required.

Marlin/src/gcode/anycubic_tft_debug/M9999.cpp

@@ -24,7 +24,7 @@
 
 #if BOTH(ANYCUBIC_TFT_DEBUG, KNUTWURST_DGUS2_TFT)
 
-#include "../../lcd/anycubic_touchscreen.h"
+#include "../../lcd/extui/knutwurst/anycubic_touchscreen.h"
 #include "../gcode.h"
 
 void GcodeSuite::M9999() {
@@ -38,4 +38,4 @@ void GcodeSuite::M9999() {
 }
 
 #endif
-// PATCH END: KNUTWURST
+// PATCH END: KNUTWURST

Marlin/src/gcode/control/M80_M81.cpp

@@ -31,7 +31,7 @@
 
 // PATCH START: Knutwurst
 #if ENABLED(ANYCUBIC_TOUCHSCREEN)
-  #include "../../lcd/anycubic_touchscreen.h"
+  #include "../../lcd/extui/knutwurst/anycubic_touchscreen.h"
 #endif
 // PATCH END: Knutwurst
 

Marlin/src/gcode/feature/pause/M600.cpp

@@ -32,7 +32,7 @@
 
 // PATCH START: Knutwurst
 #ifdef ANYCUBIC_TOUCHSCREEN
-  #include "../../../lcd/anycubic_touchscreen.h"
+  #include "../../../lcd/extui/knutwurst/anycubic_touchscreen.h"
   #include "../../../sd/cardreader.h"
 #endif
 // PATCH END: Knutwurst

Marlin/src/gcode/temp/M104_M109.cpp

@@ -39,7 +39,7 @@
 #include "../../MarlinCore.h" // for startOrResumeJob, etc.
 
 #ifdef ANYCUBIC_TOUCHSCREEN
-  #include "../../lcd/anycubic_touchscreen.h"
+  #include "../../lcd/extui/knutwurst/anycubic_touchscreen.h"
 #endif
 
 #if ENABLED(PRINTJOB_TIMER_AUTOSTART)