Minify, Compress, Cache-control and Serve static files from Plack applications

Changes for 2.000000 - 2023-08-04T00:41:41+03:00

• Upgrade dependencies.
• Use Perl v5.36 features, such as subroutine signatures.
• Add deflate compression support.
• Add optional support for zstd compression.
• Remove core modules from list of dependencies.
• Minor refactoring.
• Project license switched from Perl 5 to Apache 2.0.