[FEATURE] Feature request - Use pantheonSDK for initial processes too

[bSchnepp]

Issue Checklist

• A related or similar issue is not already marked as open
• Another issue describing a similar feature has not already been marked as wontfix or closed
• This feature is not already present in the software

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Feature Description
It would be nice to have a single unified (authoritative) SDK for any program that should run under pantheon. As it is right now, there's the content within this repository, and another intended to be used by "real programs". This distinction is somewhat arbitrary.

Feature Benefits
List the reasons why this feature would be beneficial

• Less development overhead
• Definitions can be separated from kernel headers nicely

Use case examples
List examples where this feature could be useful for end users.

• Any programs built will always agree with the same one used for the OS
• More documentation for all of the services available, since there are no secret libraries

Additional information
The repository in question is https://github.com/bSchnepp/pantheonSDK