Add MSMARCO-based topic files

[hscells]

I think this should be a fairly straight forward addition, each topic in MSMARCO is just a topic id and query separated by tab. Example:

1108939	what slows down the flow of blood
1112389	what is the county for grand rapids, mn
792752	what is ruclip
1119729	what do you do when you have a nosebleed from having your nose
1105095	where is sugar lake lodge located
1105103	where is steph currys home in nc
1128373	iur definition
1127622	meaning of heat capacity
1124979	synonym for treatment
885490	what party is paul ryan in