CB-6788 Add license to CONTRIBUTING.md
CB-6788 add header to .md files
CB-6788 add headers to bat files
CB-6788 Add license header to sln files
CB-6788 Add license headers to cs files
CB-6788 add license header to template file
add license header
add license header
add license header to all bat files, and echo off so we don't see the goto output