Improvements to command-line interface

[dr-orlovsky]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 23 lines in your changes missing coverage. Please review.

Project coverage is 3.0%. Comparing base (56f8d4c) to head (22e50ec).

Files with missing lines	Patch %	Lines
cli/src/args.rs	0.0%	11 Missing ⚠️
src/lib.rs	0.0%	7 Missing ⚠️
src/wallet.rs	0.0%	4 Missing ⚠️
cli/src/command.rs	0.0%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #248     +/-   ##
=======================================
- Coverage     3.0%   3.0%   -0.0%     
=======================================
  Files          14     15      +1     
  Lines        1753   1768     +15     
=======================================
  Hits           53     53             
- Misses       1700   1715     +15     

Flag	Coverage Δ
rust	3.0% <0.0%> (-<0.1%)	⬇️

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