Currently we have had to mark some tests as failing on Windows when the Envoy codebase is checked out with CRLF line endings. yaml-cpp fails to parse test fixtures and errors with something like: yaml: line 3: mapping values are not allowed in this context

Current (possibly non exhaustive) list of tests affected:

• //test/common/buffer:watermark_buffer_test
• //test/common/runtime:runtime_impl_test
• //test/exe:main_common_test
• //test/integration:dynamic_validation_integration_test
• //test/server:server_test

We should be able to support parsing configs with any valid line ending (or make a policy that this is not the case) and add tests that run cross-platform to ensure files with CRLF and LF line endings are parsed correctly.