Added new routes in prescription

[sriharsh05]

Proposed Changes

• Added new routes in prescription.

1.Inhalation
2.Nasogastric/Gastrostomy tube
3.intrathecal injection
4.Transdermal
5.Rectal

Associated Issue

care_fe#6939

Merge Checklist

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

Only PR's with test cases included and passing lint and test pipelines will be reviewed

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

[rithviknishad]

Nice work on your first backend PR! LGTM

[sainak]

required for ohcnetwork/care_fe#6982

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (c0740a2) 61.19% compared to head (9888a6f) 61.06%.
Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1808      +/-   ##
==========================================
- Coverage   61.19%   61.06%   -0.14%     
==========================================
  Files         208      208              
  Lines       11497    11531      +34     
  Branches     1654     1656       +2     
==========================================
+ Hits         7036     7041       +5     
- Misses       4189     4218      +29     
  Partials      272      272              

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[nihal467]

LGTM