public boolean isAuxiliary() {
        return isMeta() || auxiliary;
    }
Auxiliary hits are not counted towards the concrete number of hits to satisfy in the users request.
Any kind of meta hit is auxiliary, but hits containing concrete results can also be auxiliary,
for example ads in a service which does not primarily serve ads, or groups in a hierarchical organization.

@return true if the auxiliary value is true, or if this is a meta hit
container-search/src/main/java/com/yahoo/search/result/Hit.java