CRC doesn't get displayed when loading a ROM

[entrpntr]

Kind of trivial, but right now the checksum only gets displayed after hard resets.

[entrpntr]

A proposed solution to this was to force a reset when loading a ROM (since verification info is already displayed on-screen after hard resets). While this solution adds a delay for GBP (and SGB2) when initially loading a ROM, it does address some old concerns about the possibility of closing/reloading a ROM to bypass the delay from the fade.

Unless there is some downside being overlooked, this seems like a good way to kill 2 birds with 1 stone.