/// <summary>
/// Adds a normal key to keyboard
/// </summary>
/// <param name="template">Normal key GameObject template</param>
/// <param name="pos">Position of the key</param>
/// <param name="mainChar">Unshifted character</param>
/// <param name="shiftChar">Shifted character</param>
void AddKey(GameObject template, Vector2 pos, string mainChar, string shiftChar)
{
GameObject key = Instantiate(template, transform);
KeyboardButton keyboardButton = key.GetComponent <KeyboardButton> ();
keyboardButton.mainChar = mainChar;
keyboardButton.shiftChar = shiftChar;
keyboardButton.Init();
key.GetComponent <RectTransform> ().anchoredPosition = pos;
keyboardButtons.Add(keyboardButton);
}