Support normalizing anyof/oneof enum constraints to a single enum #211

Job	Run time
Build .Net projects (samples/client/petstore/csharp/generichost/latest/ComposedEnum)	31s
Build .Net projects (samples/client/petstore/csharp/generichost/latest/InlineEnumAnyOf)	32s
Build .Net projects (samples/client/petstore/csharp/generichost/latest/Tags)	33s
Build .Net projects (samples/client/petstore/csharp/generichost/net9/Petstore)	32s
Build .Net projects (samples/client/petstore/csharp/generichost/latest/HelloWorld)	29s
Build .Net projects (samples/client/petstore/csharp/generichost/latest/OneOfList)	28s
Build .Net projects (samples/client/petstore/csharp/generichost/net9/AnyOf)	29s
Build .Net projects (samples/client/petstore/csharp/generichost/net9/NullReferenceTypes)	32s
Build .Net projects (samples/client/petstore/csharp/generichost/net9/AllOf)	29s
Build .Net projects (samples/client/petstore/csharp/generichost/net9/FormModels)	31s
Build .Net projects (samples/client/petstore/csharp/generichost/net9/OneOf)	27s
Build .Net projects (samples/client/petstore/csharp/restsharp/net9/EnumMappings)	29s
Build .Net projects (samples/client/petstore/csharp/generichost/net9/SourceGeneration)	36s
Build .Net projects (samples/client/petstore/csharp/generichost/net9/UseDateTimeForDate)	28s
Build .Net projects (samples/client/petstore/csharp/httpclient/net9/Petstore)	31s
Build .Net projects (samples/client/petstore/csharp/generichost/net9/AnyOfNoCompare)	26s
	8m 3s

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