12.0.0 Not Nothing

Light.GuardClauses 12.0.0

What's Changed

• Support NotNullAttribute by @feO2x in #97
• StartsWith and EndsWith assertions by @feO2x in #100
• ExclusiveBetween and InclusiveBetween for Ranges by @feO2x in #101
• v12.0.0 by @feO2x in #102

Full Changelog: v11.0.0...v12.0.0