Value can be -9 to 9. Value point to actual rewarded value in dbc store.
This id can then fully replace current use of RewRepValueN, as this field will most likely be reserved for custom reputation rewards (override RewRepValueId).
Old system/DB data will still work like normal, but be aware this may change in not too far away future.
Signed-off-by: NoFantasy <nofantasy@nf.no>
