v0.6.23

Finch v0.6.23

Diff since v0.6.22

Merged pull requests:

• Add an einsum function (#454) (@willow-ahrens)
• add missing @test statements around some check_output commands (#504) (@willow-ahrens)
• Wma/fix122again (#505) (@willow-ahrens)
• reorganize utils (#506) (@willow-ahrens)
• Wma/options (#507) (@willow-ahrens)
• reduce style correctly (#508) (@willow-ahrens)

Closed issues:

• Add functionality to check whether value is statically fill (#122)
• @Einsum macro (#428)