Feature Updates

• Feature: TDDFT velocity gauge

• Feature: Add json array support and unit test

• Feature: Pythonization of math_integral in Module Base

• Fix: Add docs and example to show how to perform magnetic calculations of atomic systems

• Fix: Address compilation warnings in clang compiler 

More information about latest updates (e.g. Test, Refactor, Bug fix and Documentation) can be found on our Github or Gitee repositories