Oauth2 desktop (#255)

* Implemented OAuth2 AuthorizeAsync.

* Fixed MvcOAuth2Authorizer bug preventing confidential clients from working.

* Updated readme and version.

ReadMe.md

@@ -2,8 +2,6 @@
 
 LINQ to Twitter is an open source 3rd party LINQ Provider (Twitter Library) for the [Twitter](https://twitter.com/) micro-blogging service.  It uses standard LINQ syntax for queries and includes method calls for changes via the [Twitter API](https://dev.twitter.com/).
 
-> Please take the LINQ to Twitter Survey at [https://bit.ly/2Luzbpt](https://bit.ly/2Luzbpt).
-
 [![Standard](https://img.shields.io/endpoint?url=https%3A%2F%2Ftwbadges.glitch.me%2Fbadges%2Fstandard)](https://developer.twitter.com/en/docs/twitter-api)
 [![Labs](https://img.shields.io/endpoint?url=https%3A%2F%2Ftwbadges.glitch.me%2Fbadges%2Flabs)](https://developer.twitter.com/en/docs/labs)
 [![v2](https://img.shields.io/endpoint?url=https%3A%2F%2Ftwbadges.glitch.me%2Fbadges%2Fv2)](https://developer.twitter.com/en/docs/twitter-api)
@@ -12,22 +10,22 @@ LINQ to Twitter is an open source 3rd party LINQ Provider (Twitter Library) for
 
 The following query returns search results where people are tweeting about LINQ to Twitter:
 ```C#
-            var twitterCtx = new TwitterContext(...);
-
-            var searchResponse =
-                await
-                (from search in twitterCtx.Search
-                 where search.Type == SearchType.Search &&
-                       search.Query == "\"LINQ to Twitter\""
-                 select search)
-                .SingleOrDefaultAsync();
-
-            if (searchResponse != null && searchResponse.Statuses != null)
-                searchResponse.Statuses.ForEach(tweet =>
-                    Console.WriteLine(
-                        "User: {0}, Tweet: {1}", 
-                        tweet.User.ScreenNameResponse,
-                        tweet.Text));
+var twitterCtx = new TwitterContext(...);
+
+var searchResponse =
+    await
+    (from search in twitterCtx.Search
+     where search.Type == SearchType.Search &&
+           search.Query == "\"LINQ to Twitter\""
+     select search)
+    .SingleOrDefaultAsync();
+
+if (searchResponse != null && searchResponse.Statuses != null)
+    searchResponse.Statuses.ForEach(tweet =>
+        Console.WriteLine(
+            "User: {0}, Tweet: {1}", 
+            tweet.User.ScreenNameResponse,
+            tweet.Text));
 ```
 From a coding experience perspective, the `TwitterContext` type is analogous to the Entity Framework `DBContext`.  You use the `TwitterContext` instance, `twitterCtx`, to access `IQueryable<T>` tweet categories.  In the example above, the `Search` will give you the ability to search Twitter for tweets meeting some criteria.
 
@@ -46,11 +44,9 @@ In addition to being able to download from this site, you can also automatically
 
 ## Available Feature Set
 
-See [Making API Calls](https://github.com/JoeMayo/LinqToTwitter/wiki/Making-API-Calls).
+See [LINQ to Twitter v6 APIs]https://www.linqtotwitter.com/LINQ-to-Twitter-v6.html).
 
 ## For more info:
 
 * follow [@JoeMayo](https://twitter.com/JoeMayo) for releases and related blog posts.
 * follow [@Linq2Twitr](https://twitter.com/Linq2Twitr) for more detailed project information.
-
-> Please take the LINQ to Twitter Survey at [https://bit.ly/2Luzbpt](https://bit.ly/2Luzbpt).

src/LinqToTwitter6/LinqToTwitter.AspNet/LinqToTwitter.AspNet.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TargetFramework>net5.0</TargetFramework>
-    <Version>6.11.0</Version>
+    <Version>6.12.0</Version>
     <Authors>Joe Mayo</Authors>
     <Company>Joe Mayo</Company>
     <Product>LINQ to Twitter for ASP.NET</Product>
@@ -19,8 +19,8 @@ This library has ASP.NET authorizers and SessionStateCredentialCache that you'll
     <PackageReleaseNotes>
 Note: In previous versions of LINQ to Twitter, this was included in the `linqtotwitter` package. In version 6, ASP.NET Core 5 support is a separate package with a dependency on `linqtotwitter` v6.0+.
 
-- Added OAuth 2.0 Support, including a new MvcOAuth2Authorizer and OAuth2SessionStateCredentialStore.
-- Fixed a bug with SessionStateCredentialStore.ClearAsync that prevented it from working.
+- Added default desktop support for AuthorizeAsync in OAuth2Authorizer.
+- Fixed bug in OAuth2Authorizer so that confidential clients now work properly.
 	</PackageReleaseNotes>
     <PackageReadmeFile>ReadMe.md</PackageReadmeFile>
   </PropertyGroup>

src/LinqToTwitter6/LinqToTwitter/LinqToTwitter.csproj

@@ -4,7 +4,7 @@
 		<TargetFramework>net5.0</TargetFramework>
 		<Nullable>enable</Nullable>
 		<Description>LINQ to Twitter is a 3rd party LINQ Provider that lets you tweet and query with the Twitter API.</Description>
-		<Version>6.11.0</Version>
+		<Version>6.12.0</Version>
 		<Authors>Joe Mayo</Authors>
 		<Company>Joe Mayo</Company>
 		<PackageId>linqtotwitter</PackageId>
@@ -17,7 +17,8 @@
 		<RepositoryUrl>https://github.com/JoeMayo/LinqToTwitter</RepositoryUrl>
 		<PackageTags>twitter twitterapi twitterdev tweet linq social linqtotwitter linq2twitter</PackageTags>
 		<PackageReleaseNotes>
-- Added OAuth 2.0 support
+- Added default desktop support for AuthorizeAsync in OAuth2Authorizer.
+- Fixed bug in OAuth2Authorizer so that confidential clients now work properly.
 		</PackageReleaseNotes>
 		<PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
 		<GeneratePackageOnBuild>false</GeneratePackageOnBuild>