scheduler API

• void initScheduler()
  Initialize scheduler

• void setSchedulingPolicy(char policy)
  Set scheduling policy

  policy - Scheduling policy to set
  SCHED_ROUND_ROBIN, SCHED_USER_POLICY

• void makeRPiScheduler()
  Generate scheduler

• void setUserPolicy(void (*user_schedule_policy)())
  Set user defined policy

  user_schedule_policy - User defined policy

• void setSchedulerStatus(int status)
  Set scheduler status

  status - TRUE , FALSE(pause)