Models and database changes (cherry-picked from Resource Manager rewrite)
I made changes to models and database that are required by Resource Manager. I wanted to make it separate and rebase RM on it, because that will make it easier for me later to clean up the history.
Test Plan
Changes are working, I just want to get a confirmation all of those changes are desireable.
Formalities Checklist
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I confirmed this builds. -
I confirmed Krita ran and the relevant functions work. -
I tested the relevant unit tests and can confirm they are not broken. (If not possible, don't hesitate to ask for help!) -
I made sure my commits build individually and have good descriptions as per KDE guidelines. -
I made sure my code conforms to the standards set in the HACKING file. -
I can confirm the code is licensed and attributed appropriately, and that unattributed code is mine, as per KDE Licensing Policy.