CDJ3000x Colour and rating filter and writing

Two feature requests for rekordbox and the CDJ-3000X:

**1. Colour category assignment from the CDJ-3000X**

It's currently possible to rate tracks directly from the CDJ-3000X during a set, which is a useful way to flag and sort music on the fly. I'd like to see the same capability extended to colour categories — being able to assign a colour tag to the currently loaded track without leaving the player would be a meaningful addition to the live workflow.

The interaction model could mirror the existing rating flow: a long press or dedicated menu option exposing the eight colour options. This would let DJs tag tracks in real time without needing to return to rekordbox on a laptop.

**2. Greater-than operator for rating filters**

The rating filter currently only supports an exact match — there is no operator selection at all. Adding a "greater than or equal to" option would make it possible to filter for tracks rated 3 stars and above, for example, which would make the rating system considerably more useful as an organisational tool for larger libraries.