Loot Filters: Process BaseType list as regex expressions

The in game stash and vendor filters already support regex patterns, so this should be easily extendable to the loot filters.

I am having to create several order sensitive rules to catch name collisions. For example, I want to see Evasion/Energy gear, but not Armour/Energy. As such I have to create a rule for "Vestments" that precedes "Vest". i.e.

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BaseType "Vestments"

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BaseType "Vest"

This could be solved with one regex patterns such as using a word boundary succh as "Vest\b". Additionally, if I want to make prominent all Expert gear of a specific set of BaseTypes, I can only do this by creating a comprehensive list of all BaseType full names of all items. This could solved/generalized cleaner with regex. i.e.

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BaseType "Expert.*Vest\b"
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