unzip

Usage:
load unzip.bin
run . {dir/}zipfile {*}
optional: run multiple times without needing to re-load unzip.bin

If a destination is given, all files are extracted including directory structure.

NOTES:

Spaces are not supported well in file or directory names. To avoid issues, spaces are converted to underscores.

File and directory path lengths are limited to a maximum of 255 characters.

If not, files is checked for CRC

IMPORTANT: does NOT work as MOSlet due to working memory requirements.

Original unzipping core algorithms based on https://github.com/agn453/UNZIP-CPM-Z80