added seperate cmake project for utest

this project uses a fake rtos, and compiles for native test
this is to test some lib seperate form the rest of the system

tests/native/mock_os/mock_os.c

@@ -0,0 +1,63 @@
+
+#include "cmsis_os2.h"
+#include <stdbool.h>
+
+void Error_Handler() {
+
+}
+
+void MX_USB_DEVICE_Init() {
+    
+}
+
+#define NUM_BUFFERS 10
+static uint32_t mockQueue[NUM_BUFFERS];
+static int mockQueueFront = 0;
+static int mockQueueBack = 0;
+static bool mockQueueEmpty = true;
+
+osThreadId_t osThreadNew(osThreadFunc_t func, void *argument, const osThreadAttr_t *attr)
+{
+    return (osThreadId_t)1;
+}
+
+osStatus_t osMessageQueueGet (osMessageQueueId_t mq_id, void *msg_ptr, uint8_t *msg_prio, uint32_t timeout) {
+    if (!mockQueueEmpty)
+    {
+        // Remove the message from the queue
+        *(uint32_t *)msg_ptr = mockQueue[mockQueueFront];
+        mockQueueFront = (mockQueueFront + 1) % NUM_BUFFERS;
+        if (mockQueueFront == mockQueueBack)
+        {
+            mockQueueEmpty = true;
+        }
+        return osOK;
+    }
+    else
+    {
+        // The queue is empty
+        return osErrorResource;
+    }
+}
+
+osStatus_t osMessageQueuePut (osMessageQueueId_t mq_id, const void *msg_ptr, uint8_t msg_prio, uint32_t timeout) {
+    if (mockQueueEmpty || mockQueueBack != mockQueueFront)
+    {
+        // Add the message to the queue
+        mockQueue[mockQueueBack] = *(uint32_t *)msg_ptr;
+        mockQueueBack = (mockQueueBack + 1) % NUM_BUFFERS;
+        mockQueueEmpty = false;
+        return osOK;
+    }
+    else
+    {
+        // The queue is full
+        return osErrorResource;
+    }
+}
+
+
+osMessageQueueId_t osMessageQueueNew (uint32_t msg_count, uint32_t msg_size, const osMessageQueueAttr_t *attr) {
+    return &mockQueue;
+}
+