Disable abdm api calls when abdm is not enabled

[khavinshankar]

Proposed Changes

• block care context linking when abdm is not enabled
• block health facility service registration if abdm is not enabled

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 63.73%. Comparing base (eab3290) to head (604aa7e).

Files	Patch %	Lines
care/abdm/api/viewsets/health_facility.py	0.00%	2 Missing ⚠️
...e/facility/api/serializers/patient_consultation.py	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2340      +/-   ##
===========================================
- Coverage    63.74%   63.73%   -0.01%     
===========================================
  Files          238      238              
  Lines        13351    13353       +2     
  Branches      1906     1907       +1     
===========================================
  Hits          8511     8511              
- Misses        4488     4490       +2     
  Partials       352      352              

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