Description:

Set up of unit test framework Jest for Typescript/React code.

Type of change

Please delete options that are not relevant.

• [x ] Testing

Limitations:

Please describe limitations of this PR

Testing:

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules