[dex] intercept stake event for referral bonus

[fredev]

Intercept staking events on time lock staking pools

If the wallet staking for the first time has been referred, a reward equal to 10% of the value staked must be assigned to both the staking wallet and the referrer

The rewards must be saved in a postgres table to be subsequently sent with the following data

• address that performed the stake
• staked amount
• reward amount
• transaction id of the staking event
• transaction id of the rewards sending

[nicholas-aternum]

I added the address of the staked token to the basic specifications, because the reward will be sent in that currency.