Function build_service

pub fn build_service(crate_name: &str, crate_dir: &Path)

Build the service crate in crate_dir for the RISCV target, convert to PVM code and finish by creating a <crate_name>.pvm blob file.

This is intended to be called from a crate’s build.rs. The generated blob may be included in the crate by using the pvm_binary macro.