test: add cli_test for fswap module

[170210]

Description

closes: #XXXX

Motivation and context

How has this been tested?

Screenshots (if appropriate):

Checklist:

• I followed the contributing guidelines and code of conduct.
• I have added a relevant changelog to CHANGELOG.md
• I have added tests to cover my changes.
• I have updated the documentation accordingly.
• I have updated API documentation client/docs/swagger-ui/swagger.yaml

[codecov]

Codecov Report

Attention: Patch coverage is 99.57082% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 70.05%. Comparing base (e7c6501) to head (4a4938c).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1391      +/-   ##
==========================================
+ Coverage   69.57%   70.05%   +0.47%     
==========================================
  Files         668      672       +4     
  Lines       56231    56941     +710     
==========================================
+ Hits        39125    39890     +765     
+ Misses      14835    14776      -59     
- Partials     2271     2275       +4     

Files	Coverage Δ
x/fswap/client/testutil/query.go	100.00% <100.00%> (ø)
x/fswap/client/testutil/suite.go	100.00% <100.00%> (ø)
x/fswap/client/testutil/tx.go	100.00% <100.00%> (ø)
x/fswap/client/testutil/grpc.go	98.15% <98.15%> (ø)

... and 4 files with indirect coverage changes

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 99.51691% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 70.01%. Comparing base (6ca08db) to head (e4a51f9).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1391      +/-   ##
==========================================
+ Coverage   69.68%   70.01%   +0.32%     
==========================================
  Files         668      672       +4     
  Lines       56242    56863     +621     
==========================================
+ Hits        39194    39813     +619     
  Misses      14775    14775              
- Partials     2273     2275       +2     

Files	Coverage Δ
x/fswap/client/testutil/query.go	100.00% <100.00%> (ø)
x/fswap/client/testutil/suite.go	100.00% <100.00%> (ø)
x/fswap/client/testutil/tx.go	100.00% <100.00%> (ø)
x/fswap/client/testutil/grpc.go	98.15% <98.15%> (ø)

... and 1 file with indirect coverage changes