Handle file creation date / modified date internally (don't use the filesystem info)

[gino_m]

Need for this implementation mentioned here:

Automatically update last modified date in note

When I rename a file within Obsidian and have “Automatically update internal links” on in the settings (on by default, I suspect), I don’t see a change in date modified, alas, neither using this nor using the other plugin. It would be important because my DataView query (that compares publish update and modified dates) will not pick up on these internal link changes. We really should have a core Obsidian way of handling all this…