src/restore.rs: add a restore command

src/restore.rs

+use crate::commit;
+use crate::pull;
+use crate::push;
+
+/// Retore the .borg directory using the folder .tmp/<PROJECT_DIR>_bkp exists
+/// Where PROJECT_DIR is the name of the folder at the root of your project
+pub fn restore() {
+    let (borg_folder, _) = commit::check_path();
+    let borg_folder = borg_folder.canonicalize().unwrap();
+    let save_dir = pull::get_savefolder(&borg_folder);
+    push::copy_file(&borg_folder, &save_dir, "file", "pull");
+}