Soften solidity version of Datatypes libraries

[miguelmtzinf]

Close #738

[miguelmtzinf]

It would be great to count with @eboadom and @kyzia551 feedback on this. I wonder if we should also soften the version of other libraries like:

• helpers/*
• math/*

[kyzia551]

It would be great to count with @eboadom and @kyzia551 feedback on this. I wonder if we should also soften the version of other libraries like:

• helpers/*
• math/*

You know my opinion, that we should make it soft everywhere, and you know that auditors do not agree with it :')

[sakulstra]

For everything that might potentially be used by a 3th party fixed version is annoying.

[eboadom]

@miguelmtzinf changed to ^0.8.0 on /math and /helpers, but also on /configuration. It is quite typical for integrators to fetch the uint256 encoded config from the Pool with getConfiguration() and then import and using...for with the ReserveConfigurationMap

[miguelmtzinf]

Thanks @kyzia551 @eboadom @sakulstra , I think we found a good balance!