weighted angular tpcf?

Dear @aphearin,

I'm recently trying to use halotools for some cross-correlation calculations large-scale line intensity maps and galaxy positions. I'm wondering if halotools supports calculating a *weighted* angular tpcf from the given signal and random angular coordinates, just like angular_tpcf, which seems to take no weights. If not, would it be possible to include such a feature in next release? It would be very helpful.

Many thanks!