Make OctetsFrom and OctetsInto have associated error types. #4
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This PR allows implementations of
OctetsFromandOctetsIntoto choose their own error type. The primary motivation is to allow types where the conversion can’t fail to useInfallibleand provide variations of the conversion methods that then simply don’t fail.Thus, the PR also prefixes the names of the primary methods of the two traits with
try_and adds newtry_-less methods that are only available when conversion can’t fail.