* Adds BorrowedAccount::check_sysvar().
* Adds BorrowedAccount::get_data_mut().
* Implements account resizing in BorrowedAccount.
* Exposes is_signer() and is_writable() in InstructionContext.
* Removes AccountMeta and get_instruction_accounts_metas().
* Makes throwing errors in BorrowedAccount optional.
* Removes result return values from BorrowedAccount.
* Replaces from_keyed_account() by SysvarCache in stake instruction.
* Replaces from_keyed_account() by SysvarCache in system instruction processor.
* Removes from_keyed_account().
Moves check_sysvar_keyed_account() into sysvar_cache.rs
* Removes tests which test for incorrectly serialized sysvars.
* 10461 Reject close of vote accounts unless it earned no credits in the previous epoch. This is checked by comparing current epoch (from clock sysvar) with the most recent epoch with credits in vote state.
* zk-token-sdk: re-organize transcript
* zk-token-sdk: add pod ElGamal group encryption
* zk-token-sdk: add transcript domain separators for sigma proofs
* zk-token-sdk: clean up transfer tx decryption
* zk-token-sdk: resolve encoding issues for transfer
* zk-token-sdk: fix transfer test
* zk-token-sdk: clean up transcript for close account and withdraw instructions
* zk-token-sdk: add transfer with fee instruction
* zk-token-sdk: add transfer with fee instruction
* zk-token-sdk: add pod for cryptographic structs needed for fee
* zk-token-sdk: add pod for fee sigma proof
* zk-token-sdk: fix test for transfer with fee instruction
* zk-token-sdk: add range proof verification for transfer with fee
* zk-token-sdk: add transfer amount decryption for transfer-with-fee
* zk-token-sdk: add proof generation error for instruction
* zk-token-sdk: cargo fmt and clippy
* zk-token-sdk: fix bpf build
* Unifies SysvarCache filling in the runtime and tests.
Removes new_mock_with_sysvars_and_features()
Removes mock_process_instruction_with_sysvars().
Replaces from_keyed_account() by SysvarCache in vote processor.
* Replaces from_keyed_account() by SysvarCache in BPF loader.
