(TFM) Add transfer fees module

[aliarbak]

Notes:

• The minimum fee rate is 0.01% but must be given in uint format. So, when defining fee rates:
  • 1 = 0.01%
  • 10 = 0.1%
  • 100 = 1%
  • 1000 = 10%
  • 10000 = 100%
  • It can also be 0, which means no fee will be charged
• canComplianceBind function is for the plug-and-play support discussed before. It checks whether the module is a token agent (and is required for the module to function). It should be called from the addComplianceModule
  • This is a draft function, I can update it after we decide how to proceed with the plug-and-play support.

[Joachim-Lebrun]

let's merge #169 first on develop and then you can add the plug&play functions on this module, then after making the small modifs i noted, we can merge this PR

[Joachim-Lebrun]

• add the isPlugAndPlay and canComplianceBind after Add plug & play functions to compliance modules #169 is merged to develop
• remove useless checks to save gas
• modify setFee function to be called by the Modular Compliance contract

[Joachim-Lebrun]

just need to still add the isPlugAndPlay and canComplianceBind functions, which are both always returning true

[aliarbak]

Hey @Joachim-Lebrun, I need to rebase from develop, can you allow me to force-push to the transfer-fees-module branch?