Add Icons file for Webex Portrait Mode feature

[parkerhz]

Add the file for the Portrait feature. https://jira-eng-gpk2.cisco.com/jira/browse/SPARK-326727 This PR add three Icons.

With three icons in this path, desktop client team can

1. use the the generate_momentum_qrc.py to delete the fill color
2. add into momentum.qrc
3. then create PR into spark-client-framework

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots:

Before (If applicable):

After:

Types of changes

• [ ] 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)
• [ ] Documentation update
• [ ] Code style update (formatting, local variables)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] CI related changes
• [ ] Other... Please describe:

Checklist:

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

[codecov[bot]]

Codecov Report

Patch coverage has no change and project coverage change: -0.03 :warning:

Comparison is base (8cf2b98) 94.00% compared to head (e7835d4) 93.98%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1437 +/- ## ========================================== - Coverage 94.00% 93.98% -0.03% ========================================== Files 132 132 Lines 18279 18279 Branches 2787 2795 +8 ========================================== - Hits 17183 17179 -4 - Misses 1096 1100 +4 ``` [see 9 files with indirect coverage changes](https://codecov.io/gh/momentum-design/momentum-ui/pull/1437/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=momentum-design) Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=momentum-design). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=momentum-design)

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