Convert ABDM into Plug - Part 1/2

[khavinshankar]

This pull request represents the first phase of converting the ABDM system into a plug. The primary focus of this PR is to refactor the relationship between the ABHA number and the patient model, alongside improvements to signal handling and routing. Detailed changes include:

• Model Relationship Reversal: Changed the relationship dynamics by moving the abha_number field from the patient model to the abha_number model. This involves making patient a field within the abha_number model to better align with our new architecture.

• Signal Creation for Care Context: Implemented a new signal that triggers the creation of a care context whenever a consultation is saved. This enhances the functionality and integration of care context within our system.

• ABHA Number API Enhancements: Introduced a new abha_number viewset, serializer, and routes. These additions are designed to streamline the handling and accessibility of ABHA numbers within our system.

This PR lays the groundwork for the subsequent phase, which will further integrate and optimize the ABDM plug system.

[codecov]

Codecov Report

Attention: Patch coverage is 57.57576% with 28 lines in your changes are missing coverage. Please review.

Project coverage is 62.69%. Comparing base (51ce81e) to head (3aa812e).
Report is 102 commits behind head on develop.

❗ Current head 3aa812e differs from pull request most recent head 9471e48

Please upload reports for the commit 9471e48 to get more accurate results.

Files	Patch %	Lines
care/abdm/api/viewsets/abha_number.py	55.00%	18 Missing ⚠️
care/abdm/api/viewsets/healthid.py	10.00%	9 Missing ⚠️
care/abdm/api/viewsets/hip.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2161      +/-   ##
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+ Coverage    62.20%   62.69%   +0.49%     
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  Files          221      236      +15     
  Lines        12204    13032     +828     
  Branches      1742     1854     +112     
===========================================
+ Hits          7591     8170     +579     
- Misses        4305     4526     +221     
- Partials       308      336      +28     

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