FFM-11654 Sort serving rules in cache code

[erdirowlands]

What

• Move the group AND/OR rules outside of the critical evaluation path into the point we save them to the cache.

Why

Avoid the cost of sorting multiple times during evaluations when it is unnecessary, which can add evaluation latency.

Testing

TestGrid - both old style and new style scenarios pass.

[akiraqb]

Chatted to Erdi, looks apart form the apikey

[erdirowlands]

Chatted to Erdi, looks apart form the apikey

thanks - removed and history wiped.