update user agent to url encode / (#24)

Author: danewalton-msft

examples/Azure_IoT_Central_ESP32/AzureIoT.h

@@ -528,7 +528,7 @@ typedef struct azure_iot_config_t_struct
    *              <pnp-model-id>    = "dtmi:azureiot:devkit:freertos:Esp32AzureIotKit;1"
    *              <api-version>     = "api-version=2020-09-30"
    *              <expiration-time> = "1641251566"
-   *              <user-agent>      = "c/1.1.0-beta.1(FreeRTOS)"
+   *              <user-agent>      = "c%2F1.1.0-beta.1(FreeRTOS)"
    *              
    *              sizeof(data_buffer) >= 592 bytes (59 bytes + 2 bytes + 3 bytes + 190 bytes + 338 bytes, respectively)
    */

examples/Azure_IoT_Central_ESP32_AzureIoTKit/AzureIoT.h

@@ -528,7 +528,7 @@ typedef struct azure_iot_config_t_struct
    *              <pnp-model-id>    = "dtmi:azureiot:devkit:freertos:Esp32AzureIotKit;1"
    *              <api-version>     = "api-version=2020-09-30"
    *              <expiration-time> = "1641251566"
-   *              <user-agent>      = "c/1.1.0-beta.1(FreeRTOS)"
+   *              <user-agent>      = "c%2F1.1.0-beta.1(FreeRTOS)"
    *              
    *              sizeof(data_buffer) >= 592 bytes (59 bytes + 2 bytes + 3 bytes + 190 bytes + 338 bytes, respectively)
    */

examples/Azure_IoT_Hub_ESP32/Azure_IoT_Hub_ESP32.ino

@@ -42,7 +42,7 @@
 
 // When developing for your own Arduino-based platform,
 // please follow the format '(ard;<platform>)'. 
-#define AZURE_SDK_CLIENT_USER_AGENT "c/" AZ_SDK_VERSION_STRING "(ard;esp32)"
+#define AZURE_SDK_CLIENT_USER_AGENT "c%2F" AZ_SDK_VERSION_STRING "(ard;esp32)"
 
 // Utility macros and defines
 #define sizeofarray(a) (sizeof(a) / sizeof(a[0]))

examples/Azure_IoT_Hub_ESP8266/Azure_IoT_Hub_ESP8266.ino

@@ -46,7 +46,7 @@
 
 // When developing for your own Arduino-based platform,
 // please follow the format '(ard;<platform>)'. 
-#define AZURE_SDK_CLIENT_USER_AGENT "c/" AZ_SDK_VERSION_STRING "(ard;esp8266)"
+#define AZURE_SDK_CLIENT_USER_AGENT "c%2F" AZ_SDK_VERSION_STRING "(ard;esp8266)"
 
 // Utility macros and defines
 #define LED_PIN 2

examples/Azure_IoT_Hub_RealtekAmebaD/Azure_IoT_Hub_RealtekAmebaD.ino

@@ -24,7 +24,7 @@
 
 // When developing for your own Arduino-based platform,
 // please follow the format '(ard;<platform>)'. 
-#define AZURE_SDK_CLIENT_USER_AGENT "c/" AZ_SDK_VERSION_STRING "(ard;amebaD)"
+#define AZURE_SDK_CLIENT_USER_AGENT "c%2F" AZ_SDK_VERSION_STRING "(ard;amebaD)"
 
 // Utility macros and defines
 // Status LED: will remain high on error and pulled high for a short time for each successful send.