Throw an error when try to read a block device

[Integral-Tech]

• When reading a block device using bat, an error should be thrown.

[Integral-Tech]

@sharkdp

[keith-hall]

Does POSIX cat also error out when trying to read a block device? The aim is to maintain compatibility to be a drop in replacement. Also, an integration would be nice if we are to consider merging this :)

[Integral-Tech]

Does POSIX cat also error out when trying to read a block device? The aim is to maintain compatibility to be a drop in replacement. Also, an integration would be nice if we are to consider merging this :)

No, but use bat to read a block device will make it stuck (have to force terminate with Ctrl+C)

[keith-hall]

I wonder if there is a better solution that doesn't involve disabling functionality like #3101 or #2902