URL Rewriting doc (#2446)
* Update url-rewriting.md
* Create project.json
* Add files via upload
* Create add_rewrite.png
* Add files via upload
* Update toc.md
* Update index.md
* Update url-rewriting.md
* Add files via upload
* Add figures for redirect and rewrite
* Update images
* Update url-rewriting.md
* Update RewriteRule.cs
* Update Startup.cs
* Minor image update
* Add additional resource
* Alphabetize project.json sections
* Group System usings
* Create README.md
* Move sample info into the README
* Delete sample info (info moved to README)
* Add console logging dep
* Add console logging
* Alphabetize
* Create License.txt
* Update index.md
* Create url_redirect.png
* Add files via upload
* Create project.json
* Add files via upload
* Create README.md
* Create url-rewriting.md
* Update toc.md
* Delete add_apache_mod_redirect.png
* Delete add_iis_url_rewrite.png
* Delete add_redirect.png
* Delete add_redirect_jpg_requests.png
* Delete add_redirect_png_requests.png
* Delete add_redirect_to_https.png
* Delete add_redirect_to_https_permanent.png
* Delete add_redirect_xml_requests.png
* Delete add_rewrite.png
* Delete url_redirect.png
* Delete url_rewrite.png
* Delete ApacheModRewrite.txt
* Delete IISUrlRewrite.xml
* Delete License.txt
* Delete README.md
* Delete RewriteRule.cs
* Delete Startup.cs
* Delete global.json
* Delete project.json
* Delete testCert.pfx
* Delete url-rewriting.md
* Update toc.md
* Add link to middleware doc
* Update url-rewriting.md
* Update RewriteRule.cs
* Update Startup.cs
* Swap redirect+rewrite images
* React to review feedback
* Minor update
* Fix PathString
* Fix PathString
* Add unsupported IIS feature issue links
* Add trackAllCaptures PR link
* Update sample
* Update sample
* Update images
* Fix missing fundamentals node on doc link
* React to feedback
* Revert images
* Remove heading code style
* React to feedback
* Update title and middleware heading levels
* Update section heading and remove paragraph