proxmox-backup-client: expose exclude match patterns to cli.

Allows to pass exclude match patterns to the 'backup' command.

Signed-off-by: Christian Ebner <c.ebner@proxmox.com>

src/pxar/match_pattern.rs

@@ -60,7 +60,7 @@ pub enum MatchType {
 /// # Ok(())
 /// # }
 /// ```
-#[derive(Eq, PartialOrd)]
+#[derive(Clone, Eq, PartialOrd)]
 pub struct MatchPattern {
     pattern: Vec<u8>,
     match_positive: bool,