Holding $BREAD as a pre-requisite for projects recieving yield

[RonTuretzky]

• A minimum bread holding balance (minimumProjectBalance) variable should be added to the contract (and the initializer/ json configs)
• A setter function should be added with access control
• If a project does not hold the minimum amount in their address, the transfer of voted yield should not occur
• A test should be added to confirm this behavior

sequenceDiagram 
YieldDistributor ->> YieldDistributor : distributeYield() 
loop For each project in the projects array 
YieldDistributor ->> YieldDistributor : uint256 projectBalance = BREAD.balanceOf(projects[i]) 
alt  if balance below min
YieldDistributor ->> YieldDistributor :  BREAD.transfer(projects[i], _votedSplit); 
end 
YieldDistributor ->> YieldDistributor : calculate `_votedSplit` for `projects[i]`
YieldDistributor ->> Project : BREAD.transfer(projects[i], _votedSplit + _baseSplit);
end

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Note: The expected behavior should be that if the project does not hold the minimum amount of $BREAD in their account, the transfer will not execute. Other projects should still receive their expected amount, without augmenting their yield allocation. The yield will stay in the contract, and will increase their yield allocation in the upcoming month (in the event the project does not hold $BREAD in the next cycle as well). This allows for a "soft-penalty", as this distributes the project's yield to the other projects in the next cycle, but still allows the project to receive part of that yield and simplifies the implementation.