Editor on .NET Core.

[kegor]

Please, do not merge this PR yet.

Problem: We would like to have implementation for the Editor app on .NET Core.

Solution:

• Solution on .NET Core was implemented.
• It was additionally improved for possibility to run on Ubuntu (Linux).

Screenshots:

Take a look

_How it works on Ubuntu right after re-clone and click RUN in VS Code:_  

[bobkovalex]

Here is an overview of what got changed by this pull request:

Issues
======
- Added 12

Complexity increasing per file
==============================
- GroupDocs.Editor.MVC/Products/Common/Config/CommonConfiguration.cs  1
- GroupDocs.Editor.MVC/Program.cs  1
- GroupDocs.Editor.MVC/Products/Common/Config/GlobalConfiguration.cs  1
- GroupDocs.Editor.MVC/Products/Common/Config/ApplicationConfiguration.cs  5
- GroupDocs.Editor.MVC/Products/Editor/Config/EditorConfiguration.cs  4
- GroupDocs.Editor.MVC/Products/Common/Entity/Web/FileDescriptionEntity.cs  1
- GroupDocs.Editor.MVC/Products/Common/Util/Parser/YamlParser.cs  2
- GroupDocs.Editor.MVC/Products/Common/Config/ServerConfiguration.cs  1
- GroupDocs.Editor.MVC/Startup.cs  2
- GroupDocs.Editor.MVC/Controllers/EditorController.cs  1
- GroupDocs.Editor.MVC/AppDomainGenerator/DomainGenerator.cs  1
- GroupDocs.Editor.MVC/Products/Editor/Controllers/EditorApiController.cs  19

Clones added
============
- GroupDocs.Editor.MVC/Products/Common/Config/ApplicationConfiguration.cs  1
- GroupDocs.Editor.MVC/Products/Editor/Config/EditorConfiguration.cs  1

See the complete overview on Codacy