`getNumberOfPayouts()` no revert for non existent `processId`

[rapidddenis]

gif-contracts/contracts/modules/PolicyController.sol

Line 485 in b58fd27

function getNumberOfPayouts(bytes32 processId) external view returns(uint256 numberOfPayouts) {

all manually defined getters are reverting if id is non existent.

[matthiaszimmermann]

true, we might want to consider adding a payoutsCount to IPolicy.Policy and get rid of payoutCount mapping in the PolicyController. this would result in the unification of the approach for the getters.

needs some further analysis on how to best refactor.