Add some tests to demonstrate an estimate of the nominator limit (#2724)
* Add some tests to demonstrate an estimate of the nominator limit * Update runtime/kusama/src/lib.rs * Update runtime/polkadot/src/lib.rs Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com> * Fix build * remove max Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>