Add support for opt-in panic hooking

[Jake-Shadle]

It'd be nice to allow users to opt-in to panic handling that could also be reported with a minidump the same as crashes.

[ReactorScram]

Yeah right now I'm seeing that if I panic at any point after setting up crash handling, it leaks the server process? Maybe I've set something up wrong?

[ReactorScram]

nvm just found the docs for stale connections https://docs.rs/minidumper/latest/minidumper/struct.Server.html#method.run

Edit: on_client_disconnected seems to work, I told it to exit if there's 0 clients left connected. https://docs.rs/minidumper/latest/minidumper/trait.ServerHandler.html#method.on_client_disconnected