update_texture bail on out of bounds

[yrns]

I'm not sure this check works since data is in bytes and area is pixels, unless I'm using it wrong. It appears to work if I remove the check, however:

crayon/src/video/backends/gl/visitor.rs

Line 474 in 85b27c4

if data.len() > area.volume() as usize

[shawnscode]

Thanks! It has been fixed in #77.