Support multiple values for a property in the table

[jiemakel]

Currently, the table only shows one value even if there are multiple.

[esjewett]

@alexsherman I'd suggest this is something you could pick up. The specific problem is that the table only shows one value for a property even if multiple values exist. I would suggest that you approach this as follows, but feel free to do it differently:

• Create a new component for display of a table cell that is bound to a IPropertyToValues
• Use that component in explore-table-component.pug around line 20 instead of {{e.values[0].label.value}} - it would bind to e, which should be of the expected type
• Handle all the different situations in the component:
  • Literal value
  • Multiple literal values
  • Entity (initially just display the value the same as we are currently, but eventually we will want to display an appropriate label somehow)
  • Multiple Entity values