Added usb video example

examples/usb-video/common/ThreadIpcService.h

@@ -0,0 +1,26 @@
+#pragma once
+#include <libtwl/rtos/rtosThread.h>
+#include <libtwl/rtos/rtosEvent.h>
+#include "IpcService.h"
+
+class ThreadIpcService : public IpcService
+{
+    rtos_thread_t _thread;
+    rtos_event_t _event;
+    u32* _stack;
+    u32 _stackSize;
+    u8 _priority;
+    bool _messageValid = false;
+    u32 _message;
+
+    void ThreadMain();
+
+public:
+    ThreadIpcService(u32 ipcChannel, u8 priority, u32* stack, u32 stackSize)
+        : IpcService(ipcChannel), _stack(stack), _stackSize(stackSize), _priority(priority) { }
+
+    void Start() override;
+    void OnMessageReceived(u32 data) override;
+
+    virtual void HandleMessage(u32 data);
+};