add initial RTOS support

now without io devices and console

git-svn-id: svn://db.shs.com.ru/pip@683 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

src_main/system/piprocess.h

@@ -23,6 +23,8 @@
 #ifndef PIPROCESS_H
 #define PIPROCESS_H
 
+#ifndef PIP_FREERTOS
+
 #include "pithread.h"
 #include "pifile.h"
 
@@ -102,4 +104,5 @@ private:
 
 };
 
+#endif // PIP_FREERTOS
 #endif // PIPROCESS_H