[#107] Re-export more methods in Test.HUnit.Tasty

Description

Problem: Test.Tasty.HUnit from tasty-hunit exports many HUnit-related functions, while our version of this module in tasty-hunit-compat does not. If someone switches from tasty-hunit to tasty-hunit-compat then he might need to import some of the used methods directly from Test.HUnit which is inconvenient.

Solution: make our version of Test.Tasty.HUnit export all the same functions which this module from tasty-hunit exports.

I excluded deprecated functions because it's improbable that someone uses them.

Related issue(s)

Resolves #107 (closed)

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