Fix various warnings which become fatal with later gcc versons in esp-idf 5.x (#1268)

- we cannot use partial initialisation of structs in C++ files (copied from example C files initially it seems)
- IRAM_ATTR uses a COUNTER, do not use the attribute on the implementation
- provide missing copy implementations for Rgb and Hsv
- one no longer can |= on volatile variables; use = | instead
- fix project and header includes
- avoid redefining BLINK_GPIO
- Remove defined but unused variables
- Fix printf formats
- Add missing case statement (HTTP_EVENT_REDIRECT)
- RMT needs to be updated to new interface (CONFIG_RMT_SUPPRESS_DEPRECATE_WARN is on currently; see https://docs.espressif.com/projects/esp-idf/en/release-v5.0/esp32/api-reference/peripherals/rmt.html)
- Adjust tcpip_adpater_* to esp_netif_*
- Use buffered versions of *ntoa* functions for IPv4 addresses and not a static on the stack (also fixes warnings)
- Whatever I missed

Co-authored-by: Bjoern A. Zeeb <patch@zabbadoz.net>

code/components/jomjol_controlGPIO/SmartLeds.cpp

@@ -16,16 +16,16 @@ void IRAM_ATTR SmartLed::interruptHandler(void*) {
         if ( RMT.int_st.val & (1 << (24 + channel ) ) ) { // tx_thr_event
             if ( self )
                 self->copyRmtHalfBlock();
-            RMT.int_clr.val |= 1 << ( 24 + channel );
+            RMT.int_clr.val = RMT.int_clr.val | 1 << ( 24 + channel );
         } else if ( RMT.int_st.val & ( 1 << (3 * channel ) ) ) { // tx_end
             if ( self )
                 xSemaphoreGiveFromISR( self->_finishedFlag, nullptr );
-            RMT.int_clr.val |= 1 << ( 3 * channel );
+            RMT.int_clr.val = RMT.int_clr.val | 1 << ( 3 * channel );
         }
     }
 }
 
-void IRAM_ATTR SmartLed::copyRmtHalfBlock() {
+void SmartLed::copyRmtHalfBlock() {
     int offset = detail::MAX_PULSES * _halfIdx;
     _halfIdx = !_halfIdx;
     int len = 3 - _componentPosition + 3 * ( _count - 1 );