Allow users to unlock their CAKE at 20% penalty

Main purpose of this proposal is to allow users to unlock the CAKE in emergency, reduce the CAKE circulating and reduce the MAX CAKE supply in long term.

This will give users more confidence as they can unstake CAKE with penalty and they won’t miss out opportunity to cash out if CAKE price increases.

We should allow users to unlock CAKE before unlock date at penalty of 20% and 20% of penalty will be directly sent for burning and the amount is reduced from 750M max supply. This will slowly reduce the max supply and circulating supply and allow users to unlock their CAKE in emergency.

This will bring more users to staking and reduce the CAKE supply in long term.

**Example : ** If I have 1000 cake in locked staking, I can unlock CAKE any time and I will get 800 CAKE back and 200 CAKE will be sent to burn address and MAX CAKE supply will be reduced to 750,000,000 – 200 = 749,999,800