Function epic_wallet_rust_lib::rust_create_tx

#[no_mangle]
pub unsafe extern "C" fn rust_create_tx(
    wallet: *const c_char, 
    amount: *const c_char, 
    to_address: *const c_char, 
    secret_key_index: *const c_char, 
    epicbox_config: *const c_char, 
    min_confirmations: *const c_char
) -> *const c_char