add validation script to validate all operations

minor fixes

backend-simulators/pim/pim-simulator/src/bin/pim-simulator/main.rs

@@ -1,11 +1,10 @@
 use anyhow::{Context, Result, bail};
 use clap::Parser;
 use glob::glob;
-use pimcore::cpu::crossbar;
 use pimcore::json_to_instruction::json_to_executor;
 use pimcore::tracing::TRACER;
 use serde_json::Value;
-use std::{fs, usize};
+use std::fs;
 use std::io::Write;
 use std::path::PathBuf;