Answer expression extension implementation

[maimoonak]

Fixes part of #1039 | Depends on #1479

Description Fhir data capture and catalog supporting basic xfhir-query i.e. https://build.fhir.org/ig/HL7/sdc/expressions.html#fhirquery for answer expression. Implement reference data type Implement choice column support

Type Choose one: (Feature

Screenshots (if applicable)

{
          "text": "Choose a Patient as Caregiver?",
          "type": "reference",
          "linkId": "1.1.0", "repeats": true,
          "extension": [
            {
              "url": "http://hl7.org/fhir/StructureDefinition/questionnaire-itemControl",
              "valueCodeableConcept": {
                "coding": [ {
                    "system": "http://hl7.org/fhir/questionnaire-item-control",
                    "code": "check-box", "display": "Checkbox"
                } ], "text": "Checkbox"
            } },
            {
              "url": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-answerExpression",
              "valueExpression": {
                "expression": "Patient?active=true",
                "language": "application/x-fhir-query"
              }
            },
            {
              "url": "http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-choiceColumn",
              "extension": [
                {
                  "url": "path",
                  "valueString": "name.given.first() + ' ' + name.family + ' - ' + gender + ' - ' + birthDate.toString() "
                },
                {
                  "url": "label",
                  "valueString": "name"
                },
                {
                  "url": "forDisplay",
                  "valueBoolean": true
                }
              ]
            }
          ]
        }

Checklist

• [x] I have read and acknowledged the Code of conduct.
• [x] I have read the Contributing page.
• [x] I have signed the Google Individual CLA, or I am covered by my company's Corporate CLA.
• [x] I have discussed my proposed solution with code owners in the linked issue(s) and we have agreed upon the general approach.
• [x] I have run ./gradlew spotlessApply and ./gradlew spotlessCheck to check my code follows the style guide of this project.
• [x] I have run ./gradlew check and ./gradlew connectedCheck to test my changes locally.
• [x] I have built and run the demo app(s) to verify my change fixes the issue and/or does not break the demo app(s).

[maimoonak]

@jingtang10 kindly review the changes

[maimoonak]

@jingtang10 changes done. Kindly review

[codecov[bot]]

Codecov Report

Merging #1480 (7947d11) into master (f22598f) will decrease coverage by 2.36%. The diff coverage is 2.46%.

@@             Coverage Diff              @@
##             master    #1480      +/-   ##
============================================
- Coverage     36.26%   33.89%   -2.37%     
+ Complexity      330      316      -14     
============================================
  Files           149      151       +2     
  Lines          4961     5009      +48     
  Branches        880      899      +19     
============================================
- Hits           1799     1698     -101     
- Misses         2922     3071     +149     
  Partials        240      240              

Impacted Files	Coverage Δ
...ogle/android/fhir/datacapture/MoreAnswerOptions.kt	11.11% <0.00%> (+2.77%)	:arrow_up:
...google/android/fhir/datacapture/MoreExpressions.kt	0.00% <0.00%> (ø)
...re/MoreQuestionnaireResponseItemAnswerComponent.kt	0.00% <ø> (ø)
...d/fhir/datacapture/QuestionnaireItemEditAdapter.kt	11.68% <0.00%> (-0.16%)	:arrow_down:
...android/fhir/datacapture/QuestionnaireViewModel.kt	0.00% <0.00%> (ø)
...fhir/datacapture/enablement/EnablementEvaluator.kt	0.00% <ø> (ø)
...android/fhir/datacapture/mapping/ResourceMapper.kt	0.00% <0.00%> (ø)
...android/fhir/datacapture/utilities/FhirPathUtil.kt	0.00% <0.00%> (ø)
...iews/QuestionnaireItemDropDownViewHolderFactory.kt	61.53% <0.00%> (-1.62%)	:arrow_down:
...hir/datacapture/MoreQuestionnaireItemComponents.kt	15.54% <3.44%> (-2.95%)	:arrow_down:
... and 7 more

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