feat: remove x/authz dependency from precompiles (#62)

* feat: remove authz dependency from precompiles except for erc20

* wip: feat(precompiles): remove x/authz dependency

* test(precompiles): remove x/authz dependent test cases

* feat: remove x/authz dependency from x/erc20 and werc20 precompile

* fix(precompiles): modify contract interface and test contracts

* fix(precompiles): remove unused authz related types and test utils

* fix(precompiles): modify integration test of staking precompile

* feat(x/erc20): add allowance state (#90)

* feat(x/erc20): add allowance state

* test(x/erc20): add unit test for Allowance

* fix(x/erc20): add deleteAllowances method and modify genesis validation

* fix(x/erc20): validation of SetAllowance/GetAllowance and InitGenesis

* test(x/erc20) add test cases for UnsafeSetAllowance

* chore: fix lint

* wip: test: modify erc20 precompile tests

* test: modify erc20 precompile tests

* test(precompiles): �fix integration test

fix owner == sender case

* refactor(precompiles): remove authz dependent naming and comments

* wip: test(x/vm): modify flashLoan test

* test(x/vm): fix flashLoan integration test

* fix: merge conflict

* chore: fix lint

* chore: fix lint

* feat: remove authz keeper dependency from x/erc20 keeper

* chore: fix lint

* fix: increase consensusVersion of x/erc20 module

* chore: udpate CHANGELOG.md

* chore: update CHANGELOG.md

* chore: add comments to StakingCaller solidity contract

* fix: typo

* fix: remove duplicated test case

* fix: wrong args for ApprovalEvent

* fix: wrong error message for test

* refactor: refine code for staking precompile

* fix: merge conflicts

* refactor: change file name

* refactor(testutil): move constants for test to testutil/constants package

* refactor(erc20): InitGenesis

* test(erc20): add genesis test case

* fix(erc20): revert consensusVersion change

* refactor(erc20): refactor keeper methods of Allowance state

* test(testutil): fix test case and lint

* wip: fix(precompiles/erc20): remove incompatible logic with ERC20 Specification

* fix: add Approval event to transferFrom method and fix integration tests

* fix: FlashLoan.sol contract

* fix(x/erc20): allowance methods and test cases

* test(precompiles): add test cases for erc20 precompile

---------

Co-authored-by: Vlad <vladjdk@gmail.com>

Author: cloudgray

CHANGELOG.md

@@ -29,6 +29,7 @@
 - [\#83](https://github.com/cosmos/evm/pull/83) Remove base fee v1 from x/feemarket
 - [\#93](https://github.com/cosmos/evm/pull/93) Remove legacy subspaces
 - [\#95](https://github.com/cosmos/evm/pull/95) Replaced erc20/ with erc20 in native ERC20 denoms prefix for IBC v2
+- [\#62](https://github.com/cosmos/evm/pull/62) Remove x/authz dependency from precompiles
 
 ### API-Breaking