Allow ask for values changed after a timestamp, especially in /project API

[jmoalves]

Current Behavior

Query for a project list using project API returns a lot of data (as stated in #2577).

We are using a workaround for this with a replica of the project list in a inner project.
However, to update this list demands a lot of network traffic and a lot of time.

For instance, a 9K project list takes 30 sec loading pages in parallel.

Proposed Behavior

You could (for #2577) allow filtering the desired properties, to reduce the amount of data transferred.

For this issue, you could provide an option to list only the projects which changed after a date.

It will allow someone to keep a project list and update it using, for instance, the lastBomImport field.

Or a new changedAt field.

Checklist

• I have read and understand the contributing guidelines
• I have checked the existing issues for whether this enhancement was already requested