Propose carbon credit batch

Once a project owner has successfully created a project, he/she can then propose a carbon credit batch for said project. This can be done via the propose_carbon_credit_batch(project_hash credit_amount, penalty_repay_price, ipfs) functionality. The project owner will need to submit a valid project hash, as well as documentational proof of the validity of the carbon credit batch (i.e. IPFS link), how many credits will the carbon credit batch have and what will the penalty repay price per each credit be if the batch gets redacted in the future.

If the proposal passes the voting cycle, the amount which has given by the project owner for the batch will be deposited to the project owners holdings for further usage. From there on, the project owner is free to interact with the credits as he/she wishes.