Refactor exceptions and yaml parser

[pablocasares]

Hey, I just made a Pull Request!

Description

This PR is a refactor of #1093

Motivation and Context

Have you tested this? If so, how?

Checklist for PR author(s)

• Changes are covered by unit test
• All tests pass
• Code coverage check passes
• Error handling is tested
• Errors are handled at the appropriate layer
• Errors that cannot be handled where they occur are propagated
• (optional) Changes are covered by system test
• Relevant documentation updated
• This PR has NO breaking change to public API
• This PR has breaking change to public API and it is documented

Checklist for PR reviewer(s)

• This PR has been incorporated in release note for the coming version
• Risky changes introduced by this PR have been all considered

[codecov]

Codecov Report

Merging #1094 (eaad196) into master (705bab4) will increase coverage by 0.02%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #1094      +/-   ##
============================================
+ Coverage     92.26%   92.28%   +0.02%     
  Complexity     2150     2150              
============================================
  Files           200      200              
  Lines          8325     8325              
  Branches        504      504              
============================================
+ Hits           7681     7683       +2     
+ Misses          528      527       -1     
+ Partials        116      115       -1