Replace shared code with NuGet packages

Remove the shared code files and replace them with the NuGet packages from http://github.com/nciocpl/ncI.OCPL.Api.Shared/

Parent Issue: Update the drug dictionary to .Net 3.1 #54

Update .csproj files

src/NCI.OCPL.Api.DrugDictionary/NCI.OCPL.Api.DrugDictionary.csproj

Change the <TargetFramework> element to netcoreapp3.1.

The full set of <PackageReference> elements becomes:

    <PackageReference Include="NSwag.AspNetCore" Version="13.11.*" />
    <PackageReference Include="NEST" Version="5.6.*" />

test/NCI.OCPL.Api.DrugDictionary.Tests/NCI.OCPL.Api.DrugDictionary.Tests.csproj

Change the <TargetFramework> element to netcoreapp3.1.

The full set of package references becomes:

    <PackageReference Include="coverlet.msbuild" Version="3.0.*" />
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.10.*" />
    <PackageReference Include="xunit" Version="2.4.*" />
    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.*" />
    <PackageReference Include="Moq" Version="4.13.*" />

From the command line, in the project's base directory, run the following commands (See the "Notes section for prerequisites)

Remove the shared code projects:

$ dotnet remove src/NCI.OCPL.Api.DrugDictionary reference src/NCI.OCPL.Api.Common
$ dotnet remove test/NCI.OCPL.Api.DrugDictionary.Tests reference src/NCI.OCPL.Api.Common
$ dotnet remove test/NCI.OCPL.Api.DrugDictionary.Tests reference src/NCI.OCPL.Api.Common.Testing
$ dotnet sln remove src/NCI.OCPL.Api.Common
$ dotnet sln remove src/NCI.OCPL.Api.Common.Testing
$ rm -rf src/NCI.OCPL.Api.Common src/NCI.OCPL.Api.Common.Testing

Add NuGet packages

# Add NuGet packages
$ dotnet add src/NCI.OCPL.Api.DrugDictionary package NCI.OCPL.Api.Common --version 1.0.*
$ dotnet add test/NCI.OCPL.Api.DrugDictionary.Tests package NCI.OCPL.Api.Common --version 1.0.*
$ dotnet add test/NCI.OCPL.Api.DrugDictionary.Tests package NCI.OCPL.Api.Common.Testing --version 1.0.*

Code Cleanup

We're going to skip cleaning up the models for now and just do the changes required for .Net 3.1. (Models will be another ticket.)

In `src/NCI.OCPL.Api.DrugDictionary/Program.cs`

Add using NCI.OCPL.Api.Common;

Change the Main() to

    public static void Main(string[] args)
    {
        CreateHostBuilder<Startup>(args).Build().Run();
    }

Remove the CreateWebHostBuilder method.

In `src/NCI.OCPL.Api.DrugDictionary/Startup.cs`

Replace the constructor with

    public Startup(IConfiguration configuration)
        : base(configuration) { }

Change the declaration of ConfigureAppSpecific (change the type for env, remove the loggerFactory parameter).
```
protected override void ConfigureAppSpecific(IApplicationBuilder app, IWebHostEnvironment env)
```

Update the `web.config`

In src/NCI.OCPL.Api.DrugDictionary/web.config, in the <handlers> section, replace AspNetCoreModule with AspNetCoreModuleV2

Sub-Tasks

Notes

This requires

Installation of v3.1 of the .Net Core SDK
Configuring the SDK to retrieve NuGet packages from GitHub.

NCIOCPL / drug-dictionary-api