Feature: Separate debug mode flags for blobs

[mk-pmb]

Is your feature request related to a problem? Please describe.
Currently, with DEBUG= I see nothing, and with DEBUG=minecraft-protocol, my logs are cluttered with long data URLs from the ping response's favicon.

Describe the solution you'd like
Standard debug mode should avoid dumping large chunks of binary(-like) data. Those blobs should be printed only with additional flags. In my case, since even login fails, I don't know what else might be there beyond the favicon, but I imagine someone who wants to debug player skins may want to not enable the flag for chunk data.

Describe alternatives you've considered
Current work-around: Filter output through sed.

Additional context

[extremeheat]

Why not write code to listen to the packets instead and decide yourself what you think is relevant to log over changing longstanding behavior of DEBUG?

[mk-pmb]

Having more fine-grained options would make it more convenient to play around with the library and explore how it works. Also because I've just discovered this library and have no idea about the packets yet. If you favor keeping the tradition though ("longstanding behavior of DEBUG"), I can live with the sed workaround. (In that case there's nothing left to do here and you may close the issue.)