Added new GetResponse method overloads to IHttpClient and HttpClient

The overloads takes an instance of IHttpRequest as it's only parameter, and then returns the IHttpResponse from the generated request.

src/Skybrud.Essentials.Http/Client/HttpClient.cs

@@ -898,6 +898,17 @@ public virtual IHttpResponse GetResponse(IHttpRequestOptions options) {
             return request.GetResponse();
         }
 
+        /// <summary>
+        /// Sends a new request as described by <paramref name="request"/> and returns the response.
+        /// </summary>
+        /// <param name="request">An instance of <see cref="IHttpRequest"/> describing the request.</param>
+        /// <returns>An instanceo of <see cref="IHttpResponse"/> representing the raw response.</returns>
+        public virtual IHttpResponse GetResponse(IHttpRequest request) {
+            if (request == null) throw new ArgumentNullException(nameof(request));
+            PrepareHttpRequest(request);
+            return request.GetResponse();
+        }
+
         /// <summary>
         /// Virtual method that can be used for configuring a request.
         /// </summary>

src/Skybrud.Essentials.Http/Client/IHttpClient.cs

@@ -5,7 +5,7 @@
 using Skybrud.Essentials.Http.Options;
 
 namespace Skybrud.Essentials.Http.Client {
-    
+
     /// <summary>
     /// Interface describing a client for making HTTP requests.
     /// </summary>
@@ -18,6 +18,13 @@ public interface IHttpClient {
         /// <returns>An instanceo of <see cref="IHttpResponse"/> representing the raw response.</returns>
         IHttpResponse GetResponse(IHttpRequestOptions options);
 
+        /// <summary>
+        /// Sends a new request as described by <paramref name="request"/> and returns the response.
+        /// </summary>
+        /// <param name="request">An instance of <see cref="IHttpRequest"/> describing the request.</param>
+        /// <returns>An instanceo of <see cref="IHttpResponse"/> representing the raw response.</returns>
+        IHttpResponse GetResponse(IHttpRequest request);
+
         #region DoHttpGetRequest
 
         /// <summary>