Adding missing documentation comments to suppress warnings in .NET

No functional changes.

Author: jimevans

dotnet/src/webdriver/DriverService.cs

@@ -157,11 +157,17 @@ protected virtual string CommandLineArguments
             get { return string.Format(CultureInfo.InvariantCulture, "--port={0}", this.driverServicePort); }
         }
 
+        /// <summary>
+        /// Gets a value indicating the time to wait for an initial connection before timing out.
+        /// </summary>
         protected virtual TimeSpan InitialConnectionTimeout
         {
             get { return TimeSpan.FromSeconds(20); }
         }
 
+        /// <summary>
+        /// Gets a value indicating whether to ignore the absence of a status end point.
+        /// </summary>
         protected virtual bool IgnoreMissingStatusEndPoint
         {
             get { return false; }

dotnet/src/webdriver/Remote/CommandInfoRepository.cs

@@ -43,6 +43,9 @@ protected CommandInfoRepository()
         }
         #endregion
 
+        /// <summary>
+        /// Gets the level of the W3C WebDriver specification that this repository supports.
+        /// </summary>
         public abstract int SpecificationLevel { get; }
 
         #region Public methods

dotnet/src/webdriver/Remote/W3CWireProtocolCommandInfoRepository.cs

@@ -40,6 +40,9 @@ public W3CWireProtocolCommandInfoRepository()
         }
         #endregion
 
+        /// <summary>
+        /// Gets the level of the W3C WebDriver specification that this repository supports.
+        /// </summary>
         public override int SpecificationLevel
         {
             get { return 1; }

dotnet/src/webdriver/Remote/WebDriverWireProtocolCommandInfoRepository.cs

@@ -40,6 +40,9 @@ public WebDriverWireProtocolCommandInfoRepository()
         }
         #endregion
 
+        /// <summary>
+        /// Gets the level of the W3C WebDriver specification that this repository supports.
+        /// </summary>
         public override int SpecificationLevel
         {
             get { return 0; }