Feature/minification bundling composite files

[TomTyack]

ClientDependency (by Shannon Deminick) is a fairly solid framework for reducing all CSS and JS file requests into a single server request. Includes versioning, minification, bundling and caching.

I can appreciate it may not be everyone's prefered way of bundling, but it could be a good option to have.

This is an integration with some code changes and the original NuGet package into the assets Foundation module, that allows a developer to bundle all the JS/CSS assets via the following tags.

Usage in Layouts
- @CompositeAssetFileService.Current.RenderStyles()
- @CompositeAssetFileService.Current.RenderScript(ScriptLocation.Body)

Includes fall back to single assets requests files if the debug="false" is set on developer machines. Composite URLs are cached on the file system in App_Data, if using the default configuration.

Configuration options can be seen in the original documentation. https://github.com/Shazwazza/ClientDependency/wiki

To use this service you will need to rename the following and run the gulp build:
/// - "App_Config/ClientDependency.config.disabled". to App_Config/ClientDependency.config
/// - "\src\Foundation\Assets\code\Web.config.transform.ClientDependency.minification.example" to Web.config.transform

Once running (not in debug mode) you will see the following asset includes in the html source.

<script src="/DependencyHandler.axd/bdc200f5bb6df7e817066f4b98499322/12/js" type="text/javascript"></script>