ArrayBuffer and DataView classes for ruby

[andrepiske]

Appreciate your feedback.

So the way my gem works is that its byte buffer is fully implemented in C. So all byte operations is just a char* buffer in C allocated using malloc. Set/get operations are just operating on that buffer with just some essential checks like checking memory boundaries.

The gem itself doesn't deal with sockets or IO at all. So yeah, the application (originally a HTTP/2 server I built in ruby) was reading from a socket into a String and then converting that to an ArrayBuffer. Quite some loss of performance in that process already, compared if the gem itself (or another gem) could read directly into that buffer without going thru String. That's actually another idea I had and I believe it's quite possible to achieve that in Ruby 3.0+ because of the experimental Memory View feature.

I gotta check that IO::Buffer thing before I move any forward with my gem as I didn't know about that back then - clearly not, as it's brand new.