Support for unmanaged transports
Currently, Onionmasq only supports Lyrebird, and it does it through a hack by compiling an executable into a so
linux library which is only suitable for Android.
This is not feasible for iOS, that library format cannot be used there.
As an alternative, we would need Onionmasq to forward Arti's new unmanaged pluggable transport support, then we can just use IPtProxy as before. (Including Snowflake!)