Add rustfmt.toml and cargo fmt (#23238)

* fmt

* formatted

Co-authored-by: Lucas B <buffalu@jito.network>

sdk/src/example_mocks.rs

@@ -24,8 +24,10 @@ pub mod solana_client {
     }
 
     pub mod rpc_client {
-        use super::client_error::Result as ClientResult;
-        use crate::{hash::Hash, signature::Signature, transaction::Transaction};
+        use {
+            super::client_error::Result as ClientResult,
+            crate::{hash::Hash, signature::Signature, transaction::Transaction},
+        };
 
         pub struct RpcClient;
 

sdk/src/transaction_context.rs

@@ -1,15 +1,17 @@
 //! Successors of instruction_context_context::StackFrame, KeyedAccount and AccountInfo
 
-use crate::{
-    account::{AccountSharedData, ReadableAccount, WritableAccount},
-    instruction::InstructionError,
-    lamports::LamportsError,
-    pubkey::Pubkey,
-};
-use std::{
-    cell::{RefCell, RefMut},
-    collections::HashSet,
-    pin::Pin,
+use {
+    crate::{
+        account::{AccountSharedData, ReadableAccount, WritableAccount},
+        instruction::InstructionError,
+        lamports::LamportsError,
+        pubkey::Pubkey,
+    },
+    std::{
+        cell::{RefCell, RefMut},
+        collections::HashSet,
+        pin::Pin,
+    },
 };
 
 pub type TransactionAccount = (Pubkey, AccountSharedData);

sdk/src/wasm/transaction.rs

@@ -2,11 +2,7 @@
 #![cfg(target_arch = "wasm32")]
 #![allow(non_snake_case)]
 use {
-    crate::{
-        hash::Hash,
-        signer::keypair::Keypair,
-        {message::Message, transaction::Transaction},
-    },
+    crate::{hash::Hash, message::Message, signer::keypair::Keypair, transaction::Transaction},
     solana_program::{
         pubkey::Pubkey,
         wasm::{display_to_jsvalue, instructions::Instructions},