chore: add custom errors

[2-towns]

This PR completes custom errors definition in the following methods:

• requestStorage:
  • Marketplace_DurationExceedsLimit
  • Marketplace_TransferFailed raised by _transferFrom
• fillSlot:
  • Marketplace_TransferFailed raised by _transferFrom
  • Marketplace_ProofNotSubmittedByHost raised by submitProof
  • Proofs_ProofAlreadySubmitted raised by submitProof
  • Proofs_InvalidProof raised by submitProof
• withdrawFunds:
  • Marketplace_StartNotBeforeExpiry raised by _slotPayout
  • Marketplace_TransferFailed
• freeSlot:
  • Marketplace_TransferFailed raised by _payoutCancelledSlot
• slotState:
  • Marketplace_UnknownRequest raised by requestState
• isProofRequired:
  • Marketplace_UnknownRequest raised by _getProofRequirement(slotState)
• willProofBeRequired:
  • Marketplace_UnknownRequest raised by _getProofRequirement(slotState)
• submitProof:
  • Marketplace_ProofNotSubmittedByHost
• markProofAsMissing:
  • Marketplace_TransferFailed
• reserveSlot:
  • SlotReservations_ReservationNotAllowed
• canReserveSlot:
  • Marketplace_UnknownRequest raised by slotState

Additionally, it adds ERC20 custom errors to be handled when using safeTransfer and safeTransferFrom from OpenZeppelin.

[markspanbroek]

Nice, thanks @2-towns!