Initial attempt at tracking bonus rolls and non-loot items. Add more loot-catching patterns, and generalize them a little more. Bonus rolls are tracked by default, non-loot stuff is not. Bonus rolls don't seem to be working, but non-loot definitely is. (It may be that the patterns for bonus rolls are not actually used by the game client, or rather, that the game client does not issue those events for bonus rolls which are not your own. I have yet to win a bonus roll since implementing the code, but one person in LFR claimed to win a bonus item which simply wasn't visible to me at all. More data needed.)

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a88d485123b89e6f32553feafb789e4047d1f18e beta-mhg-2
ccca3d8d2b22bd3d956e2293d1f18f366492f308 beta-mhg-3
9232cacc91368240a94c25c6dc11afa33f8355bb beta-mhg-4
acaa01b90505b4a6c269fd069a71fd16698d53ba beta-mhg-5
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c176359e72656746dd43d57696154b5708722e26 2.20.3
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