Add OpenKNX IDF component with TPUart integration

- Created CMakeLists.txt for the OpenKNX IDF component, ensuring dependencies on OpenKNX and TPUart submodules.
- Implemented Arduino compatibility header for basic functions like millis, delay, pinMode, and digitalRead.
- Developed EspIdfPlatform class for network interface management and multicast communication.
- Added EtsMemoryLoader for loading ETS memory snapshots and managing associations.
- Introduced TpuartUartInterface for UART communication with methods for reading, writing, and managing callbacks.
- Implemented arduino_compat.cpp for Arduino-like functionality on ESP-IDF.
- Created source files for platform and memory loader implementations.
- Updated submodules for knx, knx_dali_gw, and tpuart.

Signed-off-by: Tony <tonylu@tony-cloud.com>

.gitmodules

@@ -5,3 +5,11 @@
 	path = knx
 	url = https://git.tonycloud.org/knx/knx.git
 	branch = v1
+[submodule "knx_dali_gw"]
+	path = knx_dali_gw
+	url = https://git.tonycloud.org/knx/GW-REG1-Dali.git
+	branch = v1
+[submodule "tpuart"]
+	path = tpuart
+	url = https://git.tonycloud.org/knx/tpuart.git
+	branch = main