AutoRegister for TShock 4.5.3 on Terraria 1.4.2.3

Updates:

• Now works with the latest TShock version! (4.5.3 Blood Moon edition)
• Improved randomly generated password clarity, numbers and letters that can be easily confused with others are replaced with less ambiguous ones (thanks! @Brycey92)
• Improved plugin description
• Changed SuccessMessage to InfoMessage for new passwords to make it easier to read
• Changed the plugin activation check from SSC being enabled to TShock config requiring login

More improvements are in the works, in the meantime, enjoy!