Polymake.jl 0.7.0 released

Today Polymake.jl 0.7.0 has been released.

Diff since v0.6.2

Closed issues:

• Issue building Polymake.jl on aarch64. (#323)

Merged pull requests:

• CI: run oscar with doctests on 1.6 (#379) (@benlorenz)
• CI: reset wrapper verbosity after tests (#380) (@benlorenz)
• Finalize wrapping of HomologyGroup{Integer} (#382) (@alexej-jordan)
• compat: allow CxxWrap 0.12 (#383) (@benlorenz)
• CI: update codecov/codecov-action to v2 (#385) (@fingolfin)
• Add support for type of FUNDAMENTAL_GROUP (#386) (@alexej-jordan)
• compat: require libpolymake_julia 0.7, bump version to 0.7 (for polymake 4.6) (#387) (@benlorenz)