Timeless Power

In this update:
- Made in Heaven:
  - Now doesn't influence crop growth rate by standard, as it canonnicaly should be(you can enable this feature with new relevant command);
  - Time acceleration now affects weather speed and potion effects duration;
  - Slightly increased time acceleration power;
  - Added Self-speedup effect:
    - Automatically applies on Made in Heaven's user when time acceleration is active;
    - Added hotkey to enable/disable Self-speedup;
    - Added command to enable/disable Self-speedup sound effect;
- Added 7 new commands:
  - /mihHelp;
  - /mihCropGrowthRate(True/False);
  - /mihSpeedupSound(True/False);
  - /mihPucciVoice(True/False);
- Other minor changes/fixes.