[RBDI-7] Added config-text-not-saved red border indication on text fields.
[RBDI-7] Added config-text-not-saved red border indication on text fields.

Because config info is only saved after editing ends, if app quits while still editing, config info is lost, so added red border to text fields to indicate changes that are not yet saved. Border disappears when text field resigns focus and config info is saved.

PDXostc/rvi_big_data_ios,PDXostc/rvi_big_data_ios,PDXostc/rvi_big_data_ios