* pool creation fee

* resolve existing tests

* Add test for balance change check and TODO for upgrade

* add code to configure pool creation fee param

* allow empty pool creation fee

* Add epoch identifier functions

* Replace validateEpochIdentifier functions

* Add genesis test code for mint module

* Replace duplicate function in incentives module

* Add test code for genesis validation

* Add validation for unique epoch identifier

* Add test code for unique epoch identifier

* Prep for release

* Code for getting releases

* Fix validator commission bug

* Update legacy test

* resolve upgrade test & find a few bugs (#364)

* Copy over Eugen's upgrade test script

* sync some script amendments

* Proposed param updates

* Remove updating governance params via upgrade

* Remove extra time import

Co-authored-by: antstalepresh <36045227+antstalepresh@users.noreply.github.com>

* export import genesis prototype for gamm

* add test for genesis export/init

* resolve with unpackAny only

* add test for GetTotalLiquidity after init genesis

* Fix CLI bug with start-time being blank

* fix a mistake on the "add-to-gauge" command

Co-authored-by: Thunnini <yunjh1994@gmail.com>