Have contract and non contract rentals#788

non contract rentals work exactly as today, contract rentals cant be broken by either side. The person renting the cards set the terms, price and min and max period they are willing to rent for. there should be option for season end for min and max.

smalp always cancel rents so i doubt they will do this, big loss of profit for aggroed especially for eos rentals

well you could still make potentially more money with a contract rental. people may be willing to pay more than market value in the beginning of the season

Similar to #793