Do you think it would make sense to reuse the context for operations? Similarly to [how it's done](https://github.com/alkis/decimal/blob/83cfb19d07188106e9399b36d2496a1a07ee619f/src/dec128.rs#L28) in the `decimal` crate. Currently the context is [created from scratch](https://github.com/MaterializeInc/rust-dec/blob/10eee4d2c2eb9b3ffe21d82f55819e926470ef0c/dec/src/decimal.rs#L1081) on [every operation](https://github.com/MaterializeInc/rust-dec/blob/10eee4d2c2eb9b3ffe21d82f55819e926470ef0c/dec/src/decimal.rs#L582).
Do you think it would make sense to reuse the context for operations? Similarly to how it's done in the
decimalcrate.Currently the context is created from scratch on every operation.