This component implements the fuchsia.process.Resolver protocol. This protocol is used by the #!resolve trampoline implemented in fdio that can launch a binary from any Fuchsia package.
process-resolver uses the fuchsia.pkg.PackageResolver capability from its namespace to resolve packages. Product configuration determines whether this capability is provided by the base-resolver (so only base shell packages can be resolved) or the pkg-resolver (so base, cache, or universe shell packages can be resolved).