feat(icons): adding data management icon

[owilliams320]

Description

Adding data management icon to covalent icon set

What's included?

• added new data_management icon
• including a scss font icon file now generated from ico-moon
• fixed issue where the compute_cluster_group icon was not being generated with ligature support

Test Steps

• npm run storybook
• then go to the Covalent icons story
• finally select the data_management icon from the icons list in the controls of the story

General Tests for Every PR

• npm run start still works.
• npm run lint passes.
• npm run stylelint passes.
• npm test passes and code coverage is not lower.
• npm run build still works.

Screenshots or link to StackBlitz/Plunker

[owilliams320]

🎉 This PR is included in version 8.3.0 🎉

The release is available on:

• v8.3.0
• GitHub release

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