Added hotspot hover indication.
Added hotspot hover indication.

Benvii/pannellum,eric-seekas/pannellum,mpetroff/pannellum,eric-seekas/pannellum,riuson/pannellum,riuson/pannellum,quentinyang/pannellum,mpetroff/pannellum,Benvii/pannellum,mpetroff/pannellum,quentinyang/pannellum,psteph801/psteph801.github.io,psteph801/psteph801.github.io,Benvii/pannellum,quentinyang/pannellum,psteph801/psteph801.github.io,eric-seekas/pannellum,riuson/pannellum,ywjrg/pannellum,mpetroff/pannellum,psteph801/psteph801.github.io,ywjrg/pannellum,quentinyang/pannellum,ywjrg/pannellum,eric-seekas/pannellum,riuson/pannellum,ywjrg/pannellum,Benvii/pannellum