Added basic hooks to ESP32 to allow EVSE or Water Heater app

Author: jamesharrow

examples/energy-management-app/esp32/main/Kconfig.projbuild

@@ -185,3 +185,20 @@ depends on ENABLE_PW_RPC
             about available pin numbers for UART.
 
 endmenu
+
+
+menu "Energy Management Example App Configuration"
+
+    config ENABLE_EXAMPLE_EVSE_DEVICE
+        bool "Enable EVSE device on EP1"
+        default "y"
+        help
+            To use Energy Management App as EVSE device and compile dependent files.
+
+    config ENABLE_EXAMPLE_WATER_HEATER_DEVICE
+        bool "Enable Water Heater device on EP2"
+        default "n"
+        help
+            To use Energy Management App as Water Heater device and compile dependent files.
+
+endmenu            

examples/energy-management-app/esp32/main/main.cpp

@@ -16,7 +16,14 @@
  */
 
 #include "DeviceCallbacks.h"
+
+#if CONFIG_ENABLE_EXAMPLE_EVSE_DEVICE
 #include <EnergyEvseMain.h>
+#endif // CONFIG_ENABLE_EXAMPLE_EVSE_DEVICE
+
+#if CONFIG_ENABLE_EXAMPLE_WATER_HEATER_DEVICE
+#include <WaterHeaterMain.h>
+#endif // CONFIG_ENABLE_EXAMPLE_EVSE_DEVICE
 
 #include "esp_log.h"
 #include <common/CHIPDeviceManager.h>
@@ -134,13 +141,26 @@ chip::BitMask<Feature> GetFeatureMapFromCmdLine()
 void ApplicationInit()
 {
     ESP_LOGD(TAG, "Energy Management App: ApplicationInit()");
+#if CONFIG_ENABLE_EXAMPLE_EVSE_DEVICE
     EvseApplicationInit();
+#endif // CONFIG_ENABLE_EXAMPLE_EVSE_DEVICE
+
+#if CONFIG_ENABLE_EXAMPLE_WATER_HEATER_DEVICE
+    WaterHeaterApplicationInit();
+#endif // CONFIG_ENABLE_EXAMPLE_WATER_HEATER_DEVICE
 }
 
 void ApplicationShutdown()
 {
     ESP_LOGD(TAG, "Energy Management App: ApplicationShutdown()");
+
+#if CONFIG_ENABLE_EXAMPLE_EVSE_DEVICE
     EvseApplicationShutdown();
+#endif // CONFIG_ENABLE_EXAMPLE_EVSE_DEVICE
+
+#if CONFIG_ENABLE_EXAMPLE_WATER_HEATER_DEVICE
+    WaterHeaterApplicationShutdown();
+#endif // CONFIG_ENABLE_EXAMPLE_WATER_HEATER_DEVICE
 }
 
 static void InitServer(intptr_t context)