Enable rule SA1600 (#2058)

* Enable rulee SA1600

* Revert sln changes.

* Add stylecop.json

Author: akshay-zz

lib/PuppeteerSharp.ruleset

@@ -10,7 +10,7 @@
 
     <Rule Id="SA1624" Action="Error" /> <!-- Error SA1624: Because the property only contains a visible get accessor, the documentation summary text should begin with 'Gets'. (SA1624)-->
     <Rule Id="SA1028" Action="Error" /> <!-- Error SA1028: Code should not contain trailing whitespace (SA1028)-->
-    <Rule Id="SA1600" Action="None" /> <!-- Error SA1600: Elements should be documented (SA1600)-->
+    <Rule Id="SA1600" Action="Error" /> <!-- Error SA1600: Elements should be documented (SA1600)-->
     <Rule Id="SA1516" Action="Error" /> <!-- Error SA1516: Elements should be separated by blank line (SA1516)-->
     <Rule Id="SA1629" Action="Error" /> <!-- Error SA1629: Documentation text should end with a period (SA1629)-->
     <Rule Id="SA1514" Action="Error" /> <!-- Error SA1514: Element documentation header should be preceded by blank line (SA1514)-->

lib/PuppeteerSharp.sln

@@ -19,6 +19,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		..\Directory.Build.props = ..\Directory.Build.props
 		PuppeteerSharp.ruleset = PuppeteerSharp.ruleset
 		Common\SignAssembly.props = Common\SignAssembly.props
+		stylecop.json = stylecop.json
 	EndProjectSection
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PuppeteerSharp.Xunit", "PuppeteerSharp.Xunit\PuppeteerSharp.Xunit.csproj", "{EE53767C-D321-4BCF-B372-57949F38AB40}"

lib/PuppeteerSharp/Page.cs

@@ -168,6 +168,7 @@ private Page(
         /// <inheritdoc cref="CDPSession"/>
         public CDPSession Client { get; }
 
+        /// <inheritdoc cref="ICDPSession"/>
         ICDPSession IPage.Client => Client;
 
         /// <inheritdoc/>

lib/PuppeteerSharp/PuppeteerSharp.csproj

@@ -57,4 +57,7 @@
   <ItemGroup>
     <None Remove="System.Text.Encodings.Web" />
   </ItemGroup>
+  <ItemGroup>
+    <AdditionalFiles Include="..\stylecop.json" Link="stylecop.json" />
+  </ItemGroup>
 </Project>

lib/stylecop.json

@@ -0,0 +1,8 @@
+{
+  "$schema": "https://raw.githubusercontent.com/DotNetAnalyzers/StyleCopAnalyzers/master/StyleCop.Analyzers/StyleCop.Analyzers/Settings/stylecop.schema.json",
+  "settings": {
+    "documentationRules": {
+      "documentInternalElements": false
+    }
+  }
+}