LICENSE or COPYING file not present

[MarkAtwood]

The licenses declared for this project require that the text of the license be present in the project in a LICENSE or a COPYING file. Such a file is not present. Please add it.

[fritx]

@MarkAtwood I think would be something similar to https://github.com/fritx/win-7zip/blob/dev/7zip-lite/License.txt

Related: fritx/cross-unzip#5