Improved Field Helper support

[gbenziv]

Fixes #202

• Moved field inputs to the FieldHelper class
• Added support to cancel input request

Pull Request Checklist

• [x] I have ensured that my commit message contains the Issue ID.
• [x] I have ensured that my commit message contains the feature/bugfix description.
• [ ] I have updated the documentation accordingly.
• [x] I have ensured my code follows the coding guidelines.
• [x] I have ran lint in my code locally prior to submission.
• [x] I have built my changes in local successfully.
• [ ] I have added tests to cover my changes.
• [x] All new and existing tests passed.

[codecov[bot]]

Codecov Report

Merging #205 (8a39f11) into master (bf34866) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #205   +/-   ##
=======================================
  Coverage   95.48%   95.48%           
=======================================
  Files          51       51           
  Lines        1042     1042           
=======================================
  Hits          995      995           
  Misses         47       47           

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