updated to BTreeMap to keep packages in order of entry

src/arguments.rs

@@ -1,8 +1,8 @@
-use std::collections::HashMap;
+use std::collections::{BTreeMap, HashMap};
 
-pub fn get_package_install_list(args: Vec<String>) -> HashMap<String, bool>{
+pub fn get_package_install_list(args: Vec<String>) -> BTreeMap<String, bool>{
     let mut archive = false;
-    let mut packages: HashMap<String, bool> = HashMap::new();
+    let mut packages: BTreeMap<String, bool> = BTreeMap::new();
     for arg in args {
         match arg.as_str() {
             "-r" | "--remote" => {