Add ebtc burn function wrapper

[sajanrajdev]

Ref #648 (comment)

New burn function should only take the amount and hardcode the target address to the caller. It will call the current burn function within and, hence, inherit its security checks.

Reference of how it will be used: https://sepolia.etherscan.io/address/0x9B65749b38278060C5787Cce0391AC7f1094C8E8#code%23F1%23L32

Required signature: burn(uint256 _amount)

[sajanrajdev]

#661