* Add tests for Balance module weights
* Add tests for some of the Staking functions
* Add tests for system Pallet weights
* Add weight tests for Session pallet
* Add tests for Democracy Pallet weights
* Add tests for Phragment weights
* Add tests for Treasury weights
* Use consistent naming for tests
* Split tests into separate weight and fee suites
* Move weight constant checks into one test
* Use formulas instead of hardcoded weights
* Slim down number of tests
Mainly removing ones that are either root calls that aren't "important",
or others which will likely change if another test (which we kept) also
changes.
* Update timestamp set() weight
* Update Staking Pallet weights
* Update Democracy Pallet weights
* Update copyright year
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>