Non-osgi sample of jaggr, jaggr-web

[https://github.com/OpenNTF/JavascriptAggregator/wiki/Extensibility#comibmjaggrserviceserviceprovider](https://github.com/OpenNTF/JavascriptAggregator/wiki/Extensibility#comibmjaggrserviceserviceprovider).  Basically, a service provider extension is just a generic extension that doesn't implement a specific interface like IResourceFactory or IModuleBuilder.  It can be used by extensions that want to register platform services for interfaces such as IConfigScopeModifier, etc.  See com.ibm.jaggr.service.impl.AggregatorImpl.initExtentions().