Mark as CLSCompliant and use the latest SDK version available on AppVeyor images

Author: Jericho

Source/HttpMultipartParser/Properties/AssemblyInfo.cs

@@ -22,6 +22,7 @@
 // </summary>
 // --------------------------------------------------------------------------------------------------------------------
 
+using System;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
@@ -38,4 +39,6 @@
 [assembly: ComVisible(false)]
 
 // The following GUID is for the ID of the typelib if this project is exposed to COM
-[assembly: Guid("b9ed9178-5d4f-47e2-97ac-044c8f665277")]
+[assembly: Guid("b9ed9178-5d4f-47e2-97ac-044c8f665277")]
+
+[assembly: CLSCompliant(true)]

global.json

@@ -1,6 +1,6 @@
 {
   "sdk": {
-    "version": "5.0.202",
+    "version": "5.0.300",
     "rollForward": "latestFeature"
   }
 }