[IBM2 Request] Icons definition

[jaywarfield]

• [x] I agree to follow the Code of Conduct that this project adheres to.
• [x] I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Is your feature request related to a problem? Please describe. No.

Describe the solution you'd like Initial icons to please include in IBM2 subject to your review: ibmicons.xml.zip

Currently same as in prototype but plan to continue building out icons.

File naming is up to drawio.

Thanks!

Describe alternatives you've considered None.

Additional context None.