Custom instances of GenericPrincipal in WaffleAuthenticatorBase subclasses

[Snap252]

In Module wffle-tomcat85:

waffle.apache.MixedAuthenticator and waffle.apache.NegotiateAuthenticator should both give the possibility to create other instances of Principal (e.g. for role detection) by extracting a protected method.
waffle.apache.NegotiateAuthenticator.authenticate(Request, HttpServletResponse):

           this.log.debug("logged in user: {} ({})", windowsIdentity.getFqn(), windowsIdentity.getSidString());

            final GenericPrincipal windowsPrincipal = createPrincipal(windowsIdentity);

            this.log.debug("roles: {}", Joiner.on(", ").join(windowsPrincipal.getRoles()));

with extracted overridable method

protected GenericPrincipal createPrincipal(final IWindowsIdentity windowsIdentity) {
	return new GenericWindowsPrincipal(windowsIdentity,
                    this.principalFormat, this.roleFormat)
}

for me I just need the framework to detect the current user name (no windows roles etc is needed) - the roles have to be detected by a further sql query inside the custom subclass of GenericPrincipal .
Due to the problem that this method is currently inlined, I have to copy a full class to make these changes.

[hazendaz]

This has been applied on master. Closing. Release of 1.9.0 will be out in next week or so.