Adds support for filtering patients by diagnoses

[rithviknishad]

Proposed Changes

• Adds support for filtering patients by diagnoses of last consultation and verification status.
• Adds support for retrieving ICD11 Diagnosis by ID

Associated Issue

• Support for filtering patients by ICD11 Diagnosis care_fe#7033

GET /api/v1/patient/

Merge Checklist

• Tests added/fixed
• Update docs in /docs
• Linting Complete
• Any other necessary step

@coronasafe/care-backend-maintainers @coronasafe/care-backend-admins

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (a5c790c) 61.62% compared to head (7ea5f04) 61.67%.

Files	Patch %	Lines
care/facility/api/viewsets/patient.py	86.66%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1830      +/-   ##
==========================================
+ Coverage   61.62%   61.67%   +0.05%     
==========================================
  Files         212      212              
  Lines       11664    11685      +21     
  Branches     1655     1658       +3     
==========================================
+ Hits         7188     7207      +19     
- Misses       4180     4181       +1     
- Partials      296      297       +1     

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[nihal467]

LGTM

[vigneshhari]

Lets look at N+1 query issues in this approach as well, maybe as a seperate ticket.