Build out Collections Structure

[cfilleke]

currently we plan to use the envoyproxy/envoy-openssl repository.

• [ ] Classes we will own for OpenSSL (tls/extensions folders)
• [ ] Library Code (wrappers, abstractions)
• [ ] Build Related files (patches/build scripts to automate releases)
• [ ] Documentation ( build instructions in README.md, release information)
• [x] maintain analysis.md
• [ ] CONTRIBUTING.md