Get rid of _value_ attribute for outcome_arr and routepoint_arr

[chmnata]

What this pull request accomplishes:

• Got rid of value attribute in json for outcome and routepoint column in bluetooth.all_analyses
• e.g.

SELECT      all_analyses.analysis_id,
             (all_analyses.route_points -> 0) ->> 'id'::text AS start_route_point_id,
             (all_analyses.route_points -> 0) ->> 'name'::text AS start_detector,
             (all_analyses.route_points -> 1) ->> 'id'::text AS end_route_point_id,
             (all_analyses.route_points -> 1) ->> 'name'::text AS end_detector
FROM       bluetooth.all_analyses 

returns the below correctly

analysis_id	start_route_point_id	start_detector	end_route_point_id	end_detector
1387957	116755	C	116754	B

Issue(s) this solves:

• #131

[radumas]

So all that was necessary was changing from __dict__ to __json__() to eliminate this ugliness?

[radumas]

@chmnata anything required to implement?

[chmnata]

Nope, the terminal server is already running this version 👍🏼