Added web element extension for getting the inner HTML of an element

src/Legerity.Web/Extensions/IWebElementExtensions.cs

@@ -0,0 +1,20 @@
+namespace Legerity.Web.Extensions
+{
+    using OpenQA.Selenium;
+
+    /// <summary>
+    /// Defines a collection of extensions for the <see cref="By"/> class.
+    /// </summary>
+    public static class IWebElementExtensions
+    {
+        /// <summary>
+        /// Retrieves the inner HTML of the specified <see cref="IWebElement"/>.
+        /// </summary>
+        /// <param name="element">The <see cref="IWebElement"/> to retrieve the inner HTML from.</param>
+        /// <returns>A string representing the inner HTML.</returns>
+        public static string GetInnerHtml(this IWebElement element)
+        {
+            return element.GetAttribute("innerHTML");
+        }
+    }
+}