Increase Cat Performance With BufReader Iterate over a file using BufReader's bytes() implementation over Files. This leads to a huge performance increase. This makes it almost identical to the C version's performance.
Increase Cat Performance With BufReader
Iterate over a file using BufReader's bytes() implementation over Files. This leads to a huge performance increase. This makes it almost identical to the C version's performance.

### With BufReader
real: 727ms
user: 193ms
sys:   37ms

### Without BufReader
real: 1205ms
user:  240ms
sys:   467ms

simondesloges/coreutils,DaanHoogland/coreutils,redox-os/coreutils,stratact/coreutils