fix(project): update authors list for consistency (#78)

Author: BenjaminAbt

Directory.Build.props

@@ -1,7 +1,7 @@
 <Project>
   <PropertyGroup Label="Project">
     <Product>MyCSharp.HttpUserAgentParser</Product>
-    <Authors>MyCSharp.de, Benjamin Abt, Günther Foidl and Contributors</Authors>
+    <Authors>MyCSharp, BenjaminAbt, gfoidl</Authors>
     <Company>MyCSharp.de</Company>
   </PropertyGroup>