Correct swing commands for Hitachi models

[octal-ip]

There are a few minor mistakes in HitachiHeatpumpIR.cpp that prevent the vertical and horizontal swing functions from operating. The corrected code block is below, starting from line 83:

  switch (swingVcmd)
  {
    case VDIR_AUTO:
      swingV = HITACHI_AIRCON1_VDIR_AUTO;
      break;
    case VDIR_SWING:
      swingV = HITACHI_AIRCON1_VDIR_SWING;
      break;
  }

  switch (swingHcmd)
  {
    case HDIR_AUTO:
      swingH = HITACHI_AIRCON1_HDIR_AUTO;
      break;
    case HDIR_SWING:
      swingH = HITACHI_AIRCON1_HDIR_SWING;
      break;
  }

[ToniA]

Hi, would you create a pull request? I will then merge and release it. Thanks!

[octal-ip]

Pull request created.