make libCLS more independen of HW

goal is to reuse libCLS on an diffrent MCU

tests/native/mock_os/cmsis_os2.h

@@ -1,5 +1,5 @@
 #include "stdint.h"
-
+#include "stddef.h"
 #define osWaitForever       0xFFFFFFFFU ///< Wait forever timeout value.
 
 /// Status code values returned by CMSIS-RTOS functions.
@@ -96,15 +96,47 @@ typedef struct {
 } osMessageQueueAttr_t;
 
 
+/// Attributes structure for timer.
+typedef struct {
+  const char                   *name;   ///< name of the timer
+  uint32_t                 attr_bits;   ///< attribute bits
+  void                      *cb_mem;    ///< memory for control block
+  uint32_t                   cb_size;   ///< size of provided memory for control block
+} osTimerAttr_t;
+
+
+/// Timer callback function.
+typedef void (*osTimerFunc_t) (void *argument);
+
 typedef void (*osThreadFunc_t) (void *argument);
 typedef void* osMessageQueueId_t;
 typedef void* osThreadId_t;
+typedef void* osTimerId_t;
 void Error_Handler();
 
+
+/// Timer type.
+typedef enum {
+  osTimerOnce               = 0,          ///< One-shot timer.
+  osTimerPeriodic           = 1           ///< Repeating timer.
+} osTimerType_t;
+
+// Flags options (\ref osThreadFlagsWait and \ref osEventFlagsWait).
+#define osFlagsWaitAny        0x00000000U ///< Wait for any flag (default).
+#define osFlagsWaitAll        0x00000001U ///< Wait for all flags.
+#define osFlagsNoClear        0x00000002U ///< Do not clear flags which have been specified to wait for.
+
+
 osThreadId_t osThreadNew(osThreadFunc_t func, void *argument, const osThreadAttr_t *attr);
 osStatus_t osMessageQueueGet (osMessageQueueId_t mq_id, void *msg_ptr, uint8_t *msg_prio, uint32_t timeout);
 osStatus_t osMessageQueuePut (osMessageQueueId_t mq_id, const void *msg_ptr, uint8_t msg_prio, uint32_t timeout);
 osMessageQueueId_t osMessageQueueNew (uint32_t msg_count, uint32_t msg_size, const osMessageQueueAttr_t *attr) ;
+osTimerId_t osTimerNew (osTimerFunc_t func, osTimerType_t type, void *argument, const osTimerAttr_t *attr);
+osStatus_t osTimerStart (osTimerId_t timer_id, uint32_t ticks);
+
+uint32_t osThreadFlagsWait (uint32_t flags, uint32_t options, uint32_t timeout);
+uint32_t osThreadFlagsSet (osThreadId_t thread_id, uint32_t flags);
+void osThreadExit (void);