Add JOOBY ELECTRA MTX3

[DarkPark]

Summary

Add a new device JOOBY ELECTRA MTX3.

Changes

• add MTX3
• add additional meta info for MTX1

Checklist for Reviewers

• Title and description should be descriptive (Not just a serial number for example).
• profileIDs should not be vendorID and should be a unique value for every profile.
• All devices should be listed in the vendor's index.yaml file.
• Firmware versions can not be changed.
• At least 1 image per device and should be transparent.

Notes for Reviewers

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Release Notes

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