D102D: PttR - Replace legacy ASL autosplitter with runtime autosplitter

[l3ntil]

This PR replaces the reference to the legacy ASL autosplitter for Disney's 102 Dalmatians: Puppies to the Rescue (PC) with a reference to our new runtime autosplitter.

I'm the maintainer of the original autosplitter and have added a deprecation notice to the README of that repository.

Let me know if there's an existing deprecation strategy I should use.

Thanks!

If you are adding or modifying an Auto Splitter, please fill out this checklist:

• My Auto Splitter does not contain any malicious functionality and I'm entirely responsible for any damages myself. (Any kind of abuse in an Auto Splitter will result in an immediate ban.)
• I am not replacing an existing Auto Splitter by a different author, or I have received permission from the author to replace the existing Auto Splitter.
• The Auto Splitter has an open source license that allows anyone to fork and host it.