Treat .dat files as resources.
Treat .dat files as resources.

Summary:
This is so that IJ automatically copies *.dat files when
running tests etc. Currently there are places where `*.properties`
extensions are used for files that have nothing to do with properties
just to fool IJ into copying them.

Reviewed By: styurin

fbshipit-source-id: 9c764c5d3a

Addepar/buck,nguyentruongtho/buck,romanoid/buck,facebook/buck,kageiit/buck,rmaz/buck,shs96c/buck,brettwooldridge/buck,romanoid/buck,rmaz/buck,Addepar/buck,zpao/buck,kageiit/buck,shs96c/buck,kageiit/buck,JoelMarcey/buck,Addepar/buck,brettwooldridge/buck,SeleniumHQ/buck,JoelMarcey/buck,SeleniumHQ/buck,zpao/buck,nguyentruongtho/buck,SeleniumHQ/buck,romanoid/buck,nguyentruongtho/buck,SeleniumHQ/buck,zpao/buck,rmaz/buck,SeleniumHQ/buck,JoelMarcey/buck,SeleniumHQ/buck,JoelMarcey/buck,rmaz/buck,Addepar/buck,JoelMarcey/buck,shs96c/buck,brettwooldridge/buck,facebook/buck,nguyentruongtho/buck,kageiit/buck,kageiit/buck,romanoid/buck,shs96c/buck,Addepar/buck,JoelMarcey/buck,facebook/buck,Addepar/buck,JoelMarcey/buck,JoelMarcey/buck,kageiit/buck,romanoid/buck,nguyentruongtho/buck,SeleniumHQ/buck,shs96c/buck,rmaz/buck,brettwooldridge/buck,brettwooldridge/buck,brettwooldridge/buck,facebook/buck,zpao/buck,romanoid/buck,romanoid/buck,shs96c/buck,romanoid/buck,JoelMarcey/buck,rmaz/buck,brettwooldridge/buck,rmaz/buck,SeleniumHQ/buck,Addepar/buck,JoelMarcey/buck,Addepar/buck,rmaz/buck,zpao/buck,brettwooldridge/buck,rmaz/buck,shs96c/buck,Addepar/buck,rmaz/buck,brettwooldridge/buck,shs96c/buck,brettwooldridge/buck,SeleniumHQ/buck,rmaz/buck,Addepar/buck,brettwooldridge/buck,SeleniumHQ/buck,facebook/buck,shs96c/buck,brettwooldridge/buck,shs96c/buck,shs96c/buck,Addepar/buck,JoelMarcey/buck,romanoid/buck,kageiit/buck,SeleniumHQ/buck,nguyentruongtho/buck,romanoid/buck,rmaz/buck,romanoid/buck,Addepar/buck,SeleniumHQ/buck,zpao/buck,JoelMarcey/buck,nguyentruongtho/buck,facebook/buck,Addepar/buck,rmaz/buck,shs96c/buck,zpao/buck,SeleniumHQ/buck,brettwooldridge/buck,facebook/buck,shs96c/buck,JoelMarcey/buck,romanoid/buck,romanoid/buck