test(e2e): extend staking precompile tests (#2830)
* add boilerplate for staking precompile with empty delegate method
* add simple undelegate and redelegate methods
* add new methods to run
* add simple tests
* add delegator caller checks
* fix del addr origin check
* add unit tests for delegate method
* changelog
* add undelegate tests
* add redelegate unit tests
* renamings
* generate
* pr comments
* codecov
* renaming
* e2e test and fixes
* generate
* fix tests
* fix view methods required gas
* add queries unit tests
* add more unit tests and refactor a bit
* fmt
* fixes after merge
* cleanup
* PR comments
* add todo with issue
* debugging calling precompiles through contract
* pr comments and refactorings
* fix e2e test
* fixes
* fmt
* changelog
* cleanup
