* Adds response conditions for papertrail in fastly
* Adds cache conditional for gzip in fastly
* Opens up conitionals under fastly headers
* Adds request conditions to s3 logging for fastly
* Creates conditionals properly for testing
* Clarifies conditionals documentation for the website
* Clarifies resource descriptions for conditionals
* Formats papertrail testing properly
* Fizes syntax issues in gzip and s3 fastly testing
* Tests full schemas for gzip basic testing
* Updates header testing to check full schema
* Fixes gzip and headers testing
* Fixes s3 conditional testing
* provider/fastly: Add support for managing Headers
Adds support for managing Headers in a Fastly configuration.
* update acc test
* update website with example of adding a header block
Traver Tischio