Add contrainers round trip checks

[yanganto]

• Based on #181, such that all the CI can be used for this feature branch
• Add round trips checks for Contract, Transfer, and Kit
• Impl FromStr traits for Contract, Transfer, and Kit
• Add checks for wrong armored strings

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 97.57282% with 10 lines in your changes are missing coverage. Please review.

:exclamation: No coverage uploaded for pull request base (develop@8ee3144). Click here to learn what that means.

Files	Patch %	Lines
src/containers/consignment.rs	94.3%	8 Missing :warning:
src/containers/kit.rs	96.4%	2 Missing :warning:

Additional details and impacted files

@@            Coverage Diff            @@
##             develop    #199   +/-   ##
=========================================
  Coverage           ?   16.0%           
=========================================
  Files              ?      37           
  Lines              ?    7105           
  Branches           ?       0           
=========================================
  Hits               ?    1140           
  Misses             ?    5965           
  Partials           ?       0           

Flag	Coverage Δ
rust	16.0% <97.6%> (?)

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[dr-orlovsky]

shit, again wrong target branch