Add height in exported genesis (#7089)

* Add height in exported genesis

* +1

* Add test

* Refactor ctx in setupApp

* Use amino in export

* Use tmjson

* Add custom initialVersion (set to 0 for now)

* Add comment

* Add mount in initChainer

* app.LastBlockheight

* InitializeAndSeal in InitChain?

* Revert create store with initial version

* Update to latest iavl

* Check height in test

* Make it work

* Add more tests

* Rename interface

* Use struct isntead of 6 args

* Fix lint

* Remove stray fmt

* Revert go mod/sum

* Install iavl rc3

* Update comments

* Add fee in network

* Typo

* Fix logic in commit

* Fix tests

* Only set initial version on > 1

* Genesis block num = 1

* Fresh chain, genesis block = 0

* Add comments

* Revert Mutable/ImmutableTree

* Allow for zero height

* Fix restart

* Add comments

* Add comments, fix test

* Fix remaining one test

* Add panic test

* Update comment

* Add test for --height

* No cast

* Add check that genesis file exists

* Remove duplicate imports

* Fail early

Co-authored-by: Alexander Bezobchuk <alexanderbez@users.noreply.github.com>
Co-authored-by: Jack Zampolin <jack.zampolin@gmail.com>
Co-authored-by: Cory <cjlevinson@gmail.com>

testutil/network/network.go

@@ -301,8 +301,11 @@ func New(t *testing.T, cfg Config) *Network {
 		require.NoError(t, err)
 
 		memo := fmt.Sprintf("%s@%s:%s", nodeIDs[i], p2pURL.Hostname(), p2pURL.Port())
+		fee := sdk.NewCoins(sdk.NewCoin(fmt.Sprintf("%stoken", nodeDirName), sdk.NewInt(0)))
 		txBuilder := cfg.TxConfig.NewTxBuilder()
 		require.NoError(t, txBuilder.SetMsgs(createValMsg))
+		txBuilder.SetFeeAmount(fee)    // Arbitrary fee
+		txBuilder.SetGasLimit(1000000) // Need at least 100386
 		txBuilder.SetMemo(memo)
 
 		txFactory := tx.Factory{}