feat: json fields charts and search

[v-rocheleau]

Allows the use of JSONField with array values for public charts and search.

String field props

mapping : must end at the JSONField's name
group_by (NEW) : mapping-like path pointing to the element key within the JSONField

Number field props

mapping : must end at the JSONField's name
group_by (NEW) : mapping-like path pointing to the element key within the JSONField
group_by_value (NEW) : value to perform grouping on (e.g. only get measurements where assay/id is equal to "NCIT:C200479")
value_mapping (NEW) : mapping-like path pointing to the number key for elements of the JSONField

Example fields config

{
    "fields": {
        "diagnostic_markers": {
            "mapping": "individual/phenopackets/biosamples/diagnostic_markers",
            "group_by": "label",
            "title": "Diagnostic Markers",
            "description": "Markers used for diagnosis",
            "datatype": "string",
            "config": {
                "enum": null
            }
        },
        "measurement_type": {
            "mapping": "individual/phenopackets/measurements",
            "group_by": "assay/label",
            "title": "Measurement types",
            "description": "types of measurements performed",
            "datatype": "string",
            "config": {
                "enum": null
            }
        },
        "measurement_tumor_length": {
            "mapping": "individual/phenopackets/measurements",
            "group_by": "assay/id",
            "group_by_value": "NCIT:C200479",
            "value_mapping": "value/quantity/value",
            "title": "Tumor lengths",
            "description": "measured tumor lengths in millimeters",
            "datatype": "number",
            "config": {
                "minimum": 0,
                "maximum": 200,
                "bin_size": 20,
                "taper_left": 0,
                "taper_right": 200,
                "units": "mm"
            }
        }
    }
}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.25%. Comparing base (2b4b8d5) to head (32f31e5).
Report is 4 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #498      +/-   ##
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+ Coverage    88.10%   88.25%   +0.15%     
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  Files          128      128              
  Lines         4572     4632      +60     
  Branches       671      683      +12     
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+ Hits          4028     4088      +60     
  Misses         390      390              
  Partials       154      154              

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[davidlougheed]

this will need to be reconciled with #496 which moves a lot of functions around

[davidlougheed]

@v-rocheleau COMPUTED_PROPERTY_PREFIX is still present twice - can you consolidate this? (it might be from before)

[davidlougheed]

lgtm