Light.GuardClauses 15.1.0

• new assertions: MustBeAssignableTo, MustBeConcreteClass, MustBeUri, ObjectDisposed
• new TimeSpan assertion: MustBePositiveOrInfinite accepts positive durations or Timeout.InfiniteTimeSpan
• expanded sign-guard support on all target frameworks: MustBePositive, MustNotBePositive, and MustNotBeZero for sbyte, byte, short, ushort, uint, and ulong; MustBeNegative and MustNotBeNegative for sbyte and short

What's Changed

• ObjectDisposed by @feO2x in #164
• Parsable URI Strings by @feO2x in #166
• MustBeAssignableTo by @feO2x in #169
• MustBePositive by @feO2x in #170
• MustBeConcreteClass by @feO2x in #172
• MustBePositive Feature Parity by @feO2x in #174
• MustBePositiveOrInfinite by @feO2x in #176