Add new webcam driver over latest dev. (#19280)

* Add new webcam driver over latest dev. To use the old one, define USE_WEBCAM_LAGACY

* enable build without RTSP.
check pin_pwdn before using it n 0x105!!!

* more fixes around pwdn.  Make wcresolution -1 set the resoltuion setting to 'disbale cam' value (15).

* fix task stop - wait for debug to leave-> prevents guru. pin task to core 0.

* split motion from other code.  Add USE_WEBCAM_MOTION to control inclusion of motion code (big hit). Change from using USE_WEBCAM_LEGACY to USE_WEBCAM_V2

* logging minimisation - behind WEBCAM_DEV_DEBUG

tasmota/tasmota_xdrv_driver/xdrv_81_esp32_webcam.ino

@@ -19,6 +19,9 @@
 
 #ifdef ESP32
 #ifdef USE_WEBCAM
+// defining USE_WEBCAM_V2 will use xdrv_81_esp32_webcam_task.ino instead.
+#ifndef USE_WEBCAM_V2
+
 /*********************************************************************************************\
  * ESP32 webcam based on example in Arduino-ESP32 library
  *
@@ -1531,5 +1534,6 @@ bool Xdrv81(uint32_t function) {
   return result;
 }
 
+#endif  // USE_WEBCAM_LEGACY
 #endif  // USE_WEBCAM
 #endif  // ESP32