• add preserve_order feature to toml crate

• test for preserve order

• update Cargo.lock

• changes to make lint happy

• Update tests/test_order.py

change name: outputtoml --> expectedoutput

Co-authored-by: Samuel Colvin <samcolvin@gmail.com>

• move description, complete change of name to expected_output

• move away from comparing strings

• add test to compare dumps() of toml object to the toml string

• rearrange order tests

Co-authored-by: Manfred Lotz <manfred@ctan.org> Co-authored-by: Samuel Colvin <samcolvin@gmail.com> Co-authored-by: Samuel Colvin <s@muelcolvin.com>