Issue#16 global require

[Kapnobatai3434]

Fixed eslint errors for 'global-require' rule

Description

2 minor chenges in keygen.js and showkey.js. Placed require() outside function body

Motivation and Context

It was requested by NicolasRitouet

#16

How Has This Been Tested?

npm run test command

the code was tested using jest

Screenshots (if appropriate):

Types of changes

• [x ] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x ] My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• [x ] I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• [x ] All new and existing tests passed.