Module detail page should show instructions how to register in Frosting

On the module detail page we currently show how to add the module NuGet package to a Frosting project:


But this is only the fist part to use the module in Frosting. The second part is to register the module with `UseModule`. It would be nice to be able to show this also in the usage section. For this we would need to search the assembly for `CakeModuleAttribute`, which usually registers a class implementing `ICakeModule` :

```
[assembly: CakeModule(typeof(UsuallyAClassThatImplementsICakeModule))]
```

With this information we should generate the `UseModule` calls for the Frosting usage example:

```
.UseModule()
```

Start at the module detail page's usage section and trace how the existing NuGet package instructions are generated. Then inspect how the assembly can be searched for CakeModuleAttribute and how Frosting usage examples are assembled. Done means the example emits a UseModule call for each discovered module registration.

Written by the indexing model from the issue text.