Changelog for 3.0-563

Merge branch 'fifoplayer_updates'.

This adds an "Analyzer" tab to the fifoplayer dialog which allows to conveniently browse through all register pokes that are being sent by the game each frame.
There's also a search function, but it doesn't work all that well for anything but simple searches at the moment. However, I'm merging this anyway since I'm not sure if I'm going to finish this.

Note that due to recent fifo changes, it's not yet possible to run fifoplayer in dual-core mode.