Introduce a new way of activating the test mode

right/src/usb_commands/usb_command_set_variable.c

@@ -1,13 +1,18 @@
 #include "usb_protocol_handler.h"
 #include "usb_commands/usb_command_set_variable.h"
 #include "key_matrix.h"
+#include "test_mode.h"
 
 void UsbCommand_SetVariable(void)
 {
     usb_variable_id_t variableId = GetUsbRxBufferUint8(1);
 
     switch (variableId) {
-        case UsbVariable_TestMode:
+        case UsbVariable_TestModeActive:
+            if (GetUsbRxBufferUint8(2)) {
+                TestModeActive = true;
+                TestMode_Activate();
+            }
             break;
         case UsbVariable_TestUsbStack:
             break;