added a create-project system to assembler, and fixed a couple of parsing bugs

assembler/src/util/mod.rs

@@ -0,0 +1,9 @@
+use std::io::Write;
+
+pub fn input(prompt: &str) -> String {
+    print!("{}\n > ", prompt);
+    std::io::stdout().flush().unwrap();
+    let mut input = String::new();
+    std::io::stdin().read_line(&mut input).unwrap();
+    input.trim().to_string()
+}