When we can enable a vendored build of libmbedtls through mbedtls-sys, we should expose all the libmbedtls configuration options by passing features down to mbedtls-sys.
[ ] Support vendoring: #8
[ ] Support build options: rust-mbedtls/mbedtls-sys#3
[ ] Expose features and pass them downward to mbedtls-sys
When we can enable a vendored build of
libmbedtlsthroughmbedtls-sys, we should expose all thelibmbedtlsconfiguration options by passing features down tombedtls-sys.mbedtls-sys