STATEMIND-176: Inadequate checks for quoteBounds

[asardon]

Description

The quoteBounds parameters minLoanPerCollUnitOrLtv and maxLoanPerCollUnitOrLtv can be set to 0. quoteTuple with loanPerCollUnitOrLtv == 0 is not allowed at the line QuoteHandler.sol#L560.
The quoteBounds.minFee checks the min value that quoteTuple.upfrontFeePctInBase can be, but quoteBounds.minFee can be set to a bigger value than Constants.BASE which is the max value for quoteTuple.upfrontFeePctInBase (QuoteHandler.sol#L541-L558).

Recommendation

We recommend to add more checks for quoteBounds.