Add support for search on Mongo adapter

[olokobayusuf]

No description provided.

[codecov]

Codecov Report

Merging #171 into master will decrease coverage by 0.16%.
The diff coverage is 20%.

@@            Coverage Diff             @@
##           master     #171      +/-   ##
==========================================
- Coverage   90.89%   90.73%   -0.17%     
==========================================
  Files          56       56              
  Lines        2208     2213       +5     
  Branches      497      499       +2     
==========================================
+ Hits         2007     2008       +1     
- Misses        201      205       +4

Impacted Files	Coverage Δ
src/db-adapters/Mongoose/MongooseAdapter.ts	93.85% <0%> (-0.76%)	⬇️
src/db-adapters/Mongoose/lib.ts	92.45% <50%> (-1.67%)	⬇️

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