Add SectionOptions method to return options only in a section. #3
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Here is a scenario to use SectionOptions.
I have several features in my app. Each feature can have a name like "feature1". With SectionOptions, I can write config file as following.
In my code, I can just enumerate section "features" to find out which feature should be turned on, instead of enumerate all possible features and see whether config file contains the feature name.