Root readme file with explanation of project, content, and license.
The CC0 public domain dedication.
Changing interpretation of readmes to markdown format.
Replacing terms of reuse statement with proper CC0 public domain waiver, adding proper heading, and tweaking formatting to exploit markdown.
Merge pull request #2 from NESCent/consolidate-readmes

Consolidate READMEs, add explanation, formatting, and proper CC0 public domain waiver.