Update assembly info file for v1.0.0-rc001

[version update]

Author: nfbot

source/nanoFramework.Networking.Sntp/Properties/AssemblyInfo.cs

@@ -27,4 +27,4 @@
 // [assembly: AssemblyVersion("1.0.0.0")]
 [assembly: AssemblyVersion("1.0.0.0")]
 [assembly: AssemblyFileVersion("1.0.0.0")]
-[assembly: AssemblyInformationalVersion("1.0.0-preview026")]
+[assembly: AssemblyInformationalVersion("1.0.0-rc001")]