Domain Project: Article - Removed unneeded and Added necessary references
Domain Project: Added ArticleContentRaw object
Domain Project: Added EmphasisSyntax Html Parser object
Domain Project: Added HeaderSyntax Html parser.
Domain Project: Added HtmlSyntax root object
Domain Project: Added SyntaxParser abstract object.

- Includes IReplacePattern & ISyntaxParser interfaces
Domain Project: Added NoWikiSyntax object
Domain Project: Added HorizontalRuleSyntax object
Domain Project: Added SystemSyntax root object
Domain project: Added TemplateSyntax object
Domain Project: Modified ArticleContent object

- Added `Id` field
- Remapped the Key for the object to `Id`
Domain Project: ArticleContent - Added ArticleContentRaw to the object.
Domain Project: ArticleContent - Reorganized properties in code file.
Repository Project: Added ArticleContentRawRepository object
Service Project: Added SyntaxHelper static object.
Service Project: Removed Helpers folder from ItemGroup in project file.
Service Project: ArticleService - Modified Create method
Service Project: Minor Commenting of Methods in ArticleService.
Web Project: Moved SiteController to Code folder.
Web Project: Removed ArticleModel object.