Decode native-program and sysvar accounts (#11463)

* Pass pubkey in to account-decoder for sysvars

* Decode sysvar accounts

* Decode config accounts; move validator-info lower

* Decode stake accounts

* Review comments

* Stringify any account lamports and epochs that can be set to u64::MAX

cli/src/cli.rs

@@ -1120,7 +1120,7 @@ fn process_show_account(
     let cli_account = CliAccount {
         keyed_account: RpcKeyedAccount {
             pubkey: account_pubkey.to_string(),
-            account: UiAccount::encode(account, UiAccountEncoding::Binary, None),
+            account: UiAccount::encode(account_pubkey, account, UiAccountEncoding::Binary, None),
         },
         use_lamports_unit,
     };