Balance fixes

Rainbow trout-price and experience increased
Sea Salmon, change in scoring weight, now large with 12 kg
Lake trout-price and experience increased, change in weight
A new "red book" system has been launched. For example, the eel is red-listed in Germany, and common in France.
Releasing the red book fish, you get half the experience gained for catching it
Changes in the system for counting the number of fish on the base. Some types may shift in positions, but their total number has not changed