feat: provide some way to disable generation of section snapshots by the snapshot cheatcodes

[turbocrime]

Component

Forge

Describe the feature you would like

i'm using gas section snapshots in my tests, and i check these snapshots in to my vcs as recommended.

i only want to update these snapshots deliberately, not every time i run tests. but, section snapshots will always emit, and there doesn't seem to be a simple way to turn them off.

Additional context

No response