Add directors to movie info

[jshearer]

This is going to get interesting (and fun!)

• Create new models for people associated to video #8 Create new models for people associated to video
• Get associated people info from Facets #9 Get associated people info from Facets
• Modify Jbuilder for video #11 Modify JSONbuilder for video
• Add HTML/Angular code to display supporting people #21 Add HTML/Angular code to display directors alongside country, year etc.
• Gather possible association types for supporting_role_types #18 Gather possible association types for supporting_role_types

[jshearer]

This could be complete, just depends on actually getting the data from Facets @lobrewis @bluecontainer