Added client folder for the client side of the project

Made the network component shared between two firmawre

Client/main/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRCS "main.cpp"
+                    PRIV_REQUIRES esp_eth esp_wifi esp_netif driver network nvs_flash
+                    INCLUDE_DIRS ".")

Client/main/idf_component.yml

@@ -0,0 +1,6 @@
+## IDF Component Manager Manifest File
+dependencies:
+  idf:
+    version: '>=4.1.0'
+  network:
+    path: "../../components/network"

Client/main/main.cpp

@@ -0,0 +1,54 @@
+#include <stdio.h>
+#include "esp_log.h"
+#include "esp_system.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "nvs_flash.h"
+#include "network.hpp"
+
+static const char *TAG = "ClientMain";
+
+extern "C" void app_main()
+{
+    ESP_LOGI(TAG, "Hello, Calendink Client!");
+
+    // Initialize NVS (required for some Wi-Fi configurations and network features)
+    esp_err_t ret = nvs_flash_init();
+    if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
+        ESP_ERROR_CHECK(nvs_flash_erase());
+        ret = nvs_flash_init();
+    }
+    ESP_ERROR_CHECK(ret);
+
+    ESP_ERROR_CHECK(esp_event_loop_create_default());
+
+    // Connect to WiFi
+    ESP_LOGI(TAG, "Initializing WiFi connection");
+    
+    // Attempting to connect, we don't necessarily need to block forever here
+    // as network.cpp already handles some of the retries
+    esp_err_t err = connect_wifi(CONFIG_CALENDINK_WIFI_SSID, CONFIG_CALENDINK_WIFI_PASSWORD, false);
+    
+    if (err == ESP_OK) {
+        uint8_t retries = 1;
+        do {
+            err = check_wifi_connection(retries);
+            if (err != ESP_OK) {
+                ESP_LOGW(TAG, "WiFi connection check timeout, retrying... (%d)", retries);
+                vTaskDelay(pdMS_TO_TICKS(1000));
+            }
+            retries++;
+        } while (err == ESP_ERR_TIMEOUT && retries <= CONFIG_CALENDINK_WIFI_RETRIES);
+    }
+    
+    if (err == ESP_OK) {
+        ESP_LOGI(TAG, "Successfully connected to WiFi!");
+    } else {
+        ESP_LOGE(TAG, "Failed to connect to WiFi.");
+    }
+
+    while (true)
+    {
+        vTaskDelay(pdMS_TO_TICKS(1000));
+    }
+}