Include whichboot.gb in the shootout

Requesting that you include my ROM whichboot.gb as an info ROM. It's a ROM which...
- reports the initial state of the CPU registers.
- extracts the hidden fractional bits of the DIV register.
- check the state of VRAM to see if the Nintendo logo is present.
- tries to guess which hardware or emulator it's running on based on the above.

https://github.com/nitro2k01/whichboot.gb

Start by finding how existing info ROMs are listed and included in the shootout, then inspect how the test runs are invoked. Add whichboot.gb through that existing mechanism and verify that it appears in the emulator comparison with its results reported.

Written by the indexing model from the issue text.