feat(wallet): add help for wallet cli commands (#4162)

Description
---
Converts all wallet commands to use clap instead, providing help when called with `--help`

* Note: Also commented out the Script mode. I think we can remove this now as it's not used
* Note: Deleted all of the previous arg passing logic.
* Note: Deleted previous `register_asset` and other asset-y commands

Motivation and Context
---
This is IMHO a much cleaner and extendible way of calling commands and seeing what the required fields are. It also allows defaults to be added (e.g. default, overrideable messages)

How Has This Been Tested?
---
manually

applications/tari_app_utilities/src/utilities.rs

@@ -72,7 +72,7 @@ pub fn either_to_node_id(either: Either<CommsPublicKey, NodeId>) -> NodeId {
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct UniPublicKey(PublicKey);
 
 impl FromStr for UniPublicKey {