Implement changes

* Stylecop warnings cleared
* Added a default license name
* Deleted the checkbox 'include license' on the GUI
* Hide or remove the GUID fields from the form. They complicate things and the user will very rarely change those.
* License from folder and show them in the license combo box. Please make "MIT" the default.
* Add a tickbox at the bottom of the form to allow users to open the solution folder after creating the solution.
* Show a message box once the solution has been successfully created.
* Fix issue #17
* When creating a console project, the entry point is missing (i.e. Program.Main)
* Have default values for project type (make it library) and .NET version. (Make it 4.5)