console.log / console.warn calls

[matteocargnelutti]

There are a couple of console calls in warcio.js' codebase that make it difficult to keep the verbosity of software using it under control.

• https://github.com/webrecorder/warcio.js/blob/main/src/lib/warcparser.ts#L88
• https://github.com/webrecorder/warcio.js/blob/main/src/lib/readers.ts#L232

It would be awesome if these calls were either removed or put behind a verbose flag.
I see that some tests check for console.warn calls, so maybe the latter option would be easier to adopt?

Cheers.