Feat: `_enforceBasis` checks to feeBP setters

[CruzMolina]

• feat: initial common GuardsInternal contracts
• feat: integrate GuardsInternal _enforceBasis
• feat: add _enforceBasis check to PerpetualMintInternal _setConsolationFeeBP, _setMintFeeBP, & _setRedemptionFeeBP functions
• feat: add _enforceBasis check to TokenInternal _setDistributionFractionBP