Foreign key ux mode annotation support

[jrchudy]

This PR adds the inputDisplayMode property to foreign key pseudo columns. This is added for 3 annotations currently as the property selector_ux_mode. By default, this property is set to popup to use the more robust recordset modal popup that includes sorting, filtering, and updating page size.

For defining inputDisplayMode, it will look for selector_ux_mode in the following order:

1. defined on visible-columns annotation
2. defined on foreign-key annotation
3. defined on table-display annotation when the table is the leaf table in a single outbound foreign key
4. default value of popup

These changes go alongside the changes in chaise to add a another input field for the dropdown case.

[RFSH]

Everything looks good and ready to be merged. I just asked for a very small code change.

You should also document this property on the column-directive standalone doc.