Change IConfigurationRoot to IConfiguration to allow nesting Stackify configuration section

Author: jdaspinwall

Src/StackifyLib.AspNetCore/Extensions.cs

@@ -6,7 +6,7 @@ namespace StackifyLib
 {
     public static class Extensions
     {
-        public static void ConfigureStackifyLogging(this Microsoft.AspNetCore.Builder.IApplicationBuilder app, Microsoft.Extensions.Configuration.IConfigurationRoot configuration)
+        public static void ConfigureStackifyLogging(this Microsoft.AspNetCore.Builder.IApplicationBuilder app, Microsoft.Extensions.Configuration.IConfiguration configuration)
         {
             try
             {

Src/StackifyLib/Config.cs

@@ -13,9 +13,9 @@ public class Config
     {
 #if NETCORE || NETCOREX
 
-        private static Microsoft.Extensions.Configuration.IConfigurationRoot _configuration = null;
+        private static Microsoft.Extensions.Configuration.IConfiguration _configuration = null;
 
-        public static void SetConfiguration(Microsoft.Extensions.Configuration.IConfigurationRoot configuration)
+        public static void SetConfiguration(Microsoft.Extensions.Configuration.IConfiguration configuration)
         {
             _configuration = configuration;
         }

Src/StackifyLib/Extensions.cs

@@ -32,7 +32,7 @@ public static StackifyLib.StackifyError NewStackifyError(this Exception ex)
         }
 
 #if NETCORE || NETCOREX
-        public static void ConfigureStackifyLogging(this Microsoft.Extensions.Configuration.IConfigurationRoot configuration)
+        public static void ConfigureStackifyLogging(this Microsoft.Extensions.Configuration.IConfiguration configuration)
         {
             Config.SetConfiguration(configuration);
             //tell it to load all the settings since we now have the config