Add llmchat 1.0.0 extension

[korinek-milan]

No description provided.

[TheBizzle]

Thank you for your contribution, and sorry that I took so long in getting back to you about this.

• Required fixes
  • The relevant .jar file is named LLMChat.jar. This probably works fine on Windows, but other OSes are case-sensitive, and NetLogo fails to find and load the extension for me, until I rename the file to llmchat.jar. The file in the archive needs to be renamed to all-lowercase before I can merge this.
    • The codeName field in the libraries.conf file should probably change in the same way
• Recommended changes
  • NetLogo does not use camelCase for identifiers, but instead uses kebab-case
  • You refer to your extension as LLMChat in the code, but I would more commonly expect to see it as llm-chat. Capital letters are not really used in NetLogo.
  • Your demo model reads text from an Input widget and then blanks it. Maybe you would prefer to use the user-input primitive
  • Your demo model dumps the output to the Command Center, but newlines don't render there. Maybe your model would provide a nicer experience by writing the output to an Output widget.

[korinek-milan]

Fixes and recomended changes were made.