Visualize Mobile Code Signing files stored in Project-level Secure Files

Currently, the only file attributes shown in Project-level Secure Files are the file name and created_at date. Since there are often files uploaded with generic or auto-generated file names, it would be helpful to be able to visualize additional file properties.

For the mobile-devops use case there are several properties we can extract from signing certificates and provisioning profiles. See the screenshot below:

For additional context, see these mobile-devops video updates:

• https://www.youtube.com/watch?v=mmeHhMQV-ck
• https://www.youtube.com/watch?v=R4asgR4Q1Q4

It issue exists to track the work needed to add code signing visualizer, starting with iOS.

Breaking down the original POC is outline below:

• Data model changes - !98586 (merged)
• .cer file parser and background file processing - !99046 (merged)
• .p12 file parser - !100465 (merged)
• .mobileprovision file parser - !100477 (merged)
• Adding metadata modal to settings page - !104162 (merged)