Finds the resource type definition associated with the given context
path (defined in muse.xml), instantiates an instance of the resource
class, and sets the basic values (EPR, initialization parameters, etc.)
and Muse components (Environment, log file, etc.) that it needs to
The Resource object returned by this method has not been initialized
yet. Once the Resource.initialize() method has been called, the resource
should be added to the ResourceManager with the addResource() method.