Show Parameter Info for generic type argument lists

[olegnekludov]

Parameter Info (Ctrl+P) for generics arguments (when applying it) will be also usefull because them have default values and restrictions. Example of default values and restrictions:

    shared formal MemberClass<Container, Type, Arguments> memberClassApply
            <Container=Nothing, Type=Anything, Arguments=Nothing>
            (AppliedType<Object> containerType, AppliedType<>* typeArguments)
                given Arguments satisfies Anything[];

[gavinking]

This is a should be a straightforward change to org.intellij.plugins.ceylon.ide.completion.CeylonParameterInfoHandler.