SAM-EM ITC output

[softwareengineerprogrammer]

Description

Addresses NREL#404 by outputting ITC in ECONOMIC PARAMETERS

Testing & Verification

1. Unit tests added: N/A
2. Unit tests updated: Examples regenerated
3. Manual testing: Manually checked results

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Change Checklist:

Observe the following checklist items if your change includes a new version (see versioning notes and version management docs).

Before merging:

1. Add a CHANGELOG entry: 4cba65f

After merging:

1. Push tag(s) to GitHub: git push origin refs/tags/v3.11.2

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Sub-PR of #117