rename Test.GuildPermissions to a more general Test.Guilds

test/Discord.Net.Tests/Tests.GuildPermissions.cs → test/Discord.Net.Tests/Tests.Guilds.cs

@@ -5,7 +5,7 @@ using Xunit;
 
 namespace Discord
 {
-    public class GuidPermissionsTests
+    public class GuildTests
     {
         [Fact]
         public Task TestGuildPermission()