Subdivide Pattern Interface

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The pattern interface supports three methods (matches, containedIn, find). When compiling to a Java class, each of these methods plays a role in the size of the class. Since the compiled class is often large, it might be desirable to allow compiling to a class which only supports match, or only supports match/containedIn. Probably supporting all 5 non-empty combinations of methods would be tedious and confusing.

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Not 5, 7. Sheesh.