CXF interceptor that uncompresses those incoming messages that have "gzip"
content-encoding. An instance of this class should be added as an in and
inFault interceptor on clients that need to talk to a service that returns
gzipped responses or on services that want to accept gzipped requests. For
clients, you probably also want to use
org.apache.cxf.transports.http.configuration.HTTPClientPolicy#setAcceptEncoding
to let the server know you can handle compressed responses. To compress
outgoing messages, see
GZIPOutInterceptor. This class was originally
based on one of the CXF samples (configuration_interceptor).