Create directories / re-arrange structure of the repository

[danyork]

Right now we have ALL the documents in the top-level of the ose-documentation repository. However:

• we are almost at the point of translating them into other languages
• in 2021, our intent is to start developing documentation for email servers

So I am thinking to restructure the repo to have a new directory structure:

• web (current set of documentation
• web-es (Spanish translations)
• web-fr (French translations)
• email
• email-es
• email-fr

Originally I was thinking of having the translations inside of the main web or email directories, but it was pointed out that keeping them separate would allow someone else to clone the web directory and then translate that into a different language.

Any comments or thoughts about this before I make the change?