Configure SwifterPM cached directory materialization via install passthrough

SwifterPM’s --cached-directory-materialization option can now be configured through Tuist’s existing install passthrough path, both from Config.project.generatedProject.installOptions.passthroughSwiftPackageManagerArguments and from the TUIST_INSTALL_PASSTHROUGH_ARGUMENTS environment variable. This keeps the CLI surface smaller and avoids adding a dedicated environment variable. The default behavior remains automatic when the option is not set.