New: Delete functionality for Projects and Resources and additional fields

src/Project.Tests/DefaultControllerTests.cs

src/Project.Tests/Project.Tests.csproj

src/Project.Tests/ProjectControllerTests.cs

src/Project.Tests/ResourceControllerTests.cs

src/Project.Tests/ResourceTypeControllerTests.cs

src/Project.Tests/app.config

src/Project.Tests/packages.config

src/Project/App.config

src/Project/Controllers/DataSourceController.cs

src/Project/Controllers/DisciplineController.cs

src/Project/Controllers/InstituteController.cs

src/Project/Controllers/ProjectController.cs

src/Project/Controllers/ProjectRoleController.cs

src/Project/Controllers/ResourceController.cs

src/Project/Controllers/ResourceTypeController.cs

src/Project/Controllers/SubProjectController.cs

src/Project/Controllers/VisibilityController.cs

src/Project/Models/DisciplineModel.cs

src/Project/Models/GitlabResourceTypeModel.cs

src/Project/Models/InstituteModel.cs