Open Enclave repo users have a good initial impression of the OSS project

[CodeMonkeyLeet]

This story tracks the various fit & finish or fixes for "embarrassing" bugs that need to be addressed before publishing the Open Enclave repo as public OSS:

• Remove dead code before public preview #57 Remove dead code before public preview
• Verify that OE code does not use assert() to control code flow in Release #146 Verify that OE code does not use assert() to control code flow in Release
• Use Linux naming conventions internally. #303 Use Linux naming conventions internally
• Remove existing CMAKE based samples #393 Remove existing CMAKE based samples
• Remove unused Open Enclave tools #563 Remove unused Open Enclave tools

This should be considered secondary to cleaning up technical issues in #396