grim/envconfig2

Add a copyright file

2018-08-28, Gary Kramlich
3aea571aad11
Add a copyright file
38829efb5c158274ac26a8efff4acbc8f5ca46bc v0.1
e48e6578bd847093eb7ed4e049c76a9b977c2a5c v0.2
11f381cdb6cef679ac6ce21bf051e0f98033069f v0.3
fc9667561a6c40a0f2bd2229d2a9f8c0c4569b72 v0.4
fc9667561a6c40a0f2bd2229d2a9f8c0c4569b72 v0.4
cadc3387311f36a0ab8867ab354a001a81e503bd v0.4