Token Accounts: return ui_amount, decimals with decoded account (#11407)

* Return ui_amount, decimals from token client methods

* Return ui_amount, decimals in RPC jsonParsed token accounts

* Fixup docs

* Return ui_amount, decimals in pubsub jsonParsed token accounts

* Remove unnecessary duplicate struct

* StringAmount rename

cli/src/cli.rs

@@ -1235,7 +1235,7 @@ fn process_show_account(
     let cli_account = CliAccount {
         keyed_account: RpcKeyedAccount {
             pubkey: account_pubkey.to_string(),
-            account: UiAccount::encode(account, UiAccountEncoding::Binary),
+            account: UiAccount::encode(account, UiAccountEncoding::Binary, None),
         },
         use_lamports_unit,
     };