update using statements of finished days

src/cli/commands/day001.rs

@@ -1,4 +1,4 @@
-use crate::cli::PathBuf;
+use std::path::PathBuf;
 use crate::util::read_lines;
 
 pub fn subcmd_day001(file: &Option<PathBuf>, top: &i32, total: &bool) {

src/cli/commands/day002.rs

@@ -1,4 +1,4 @@
-use crate::cli::PathBuf;
+use std::path::PathBuf;
 use crate::util::read_lines;
 
 #[derive(Debug)]

src/cli/commands/day003.rs

@@ -1,4 +1,4 @@
-use crate::cli::PathBuf;
+use std::path::PathBuf;
 use crate::util::read_lines;
 
 #[derive(Debug,Clone)]