create a HTTP::Request from a curl command line

Changes for 0.52 - 2023-09-15

• Switch test suite to Test2::V0
• Suppress trivial Content-Length headers in ->as_curl
• --disable is a boolean option
• Add support for --json
• Add support for --max-filesize The behaviour is slightly different from cURL. --max-filesize looks at the size of the body, not at the Content-Length header.
• Add support for --interface (only IP addresses, not interface names)
• Fix Mojolicious snippet generation with local address