MSXIRC v1.1 - IRC client for MSX

Improved version of Ptero's MSXIRC enhanced by Ducasp.
Find more at: https://github.com/Fubukimaru/MSXIRC

Previous version: https://msx.org/downloads/irc-client-msx

Current improvements in this version:

• Fixes to the UNAPI calling code so it works with ROM UNAPI's
• Fixes not being able to connect to server when using a INI file as input parameter
• Fixes DOS1 Mapper support when no mapper present
• DOS1 Mapper wouldn't allow usage of #FF segment for our program, it a valuable segment, one more window and no reason to do so
• Fixes possible crash with DOS1 mapper support and Mapper UNAPI, it was assuming it always use last mapper segment in DOS1, this is not a rule even though it works for Obsonet that does that :)
• Changed the exit function, so it closes open connection as well
• Updated so the main menu won't show remainings of the cursor or of the SIAT :)
• Improvement on the Help File
• Text strings review / correction
• Clean-up of code
• Commentaries about code functionality