Add Certora formal verification for GhoStewardV2 #59

Job	Run time
verify (non-4626/Alex-gho-gsm_inverse.conf)	10m 1s
verify (non-4626/Alex-gho-gsm.conf)	8m 33s
verify (non-4626/balances-buy.conf)	8m 28s
verify (non-4626/balances-sell.conf)	7m 35s
verify (non-4626/Dominik-gho-assetToGhoInvertibility.conf --rule basicProperty_getAssetAmountForB...	6m 33s
verify (non-4626/Dominik-gho-fixedPriceStrategy.conf)	4m 41s
verify (non-4626/fees-buy.conf)	8m 6s
verify (non-4626/fees-sell.conf)	9m 30s
verify (non-4626/otakar-FixedFeeStrategy.conf)	4m 42s
verify (non-4626/Martin-gho-gsm.conf)	29m 15s
verify (non-4626/antti-optimality.conf --rule R3_optimalityOfSellAsset_v1 R1_optimalityOfBuyAsset...	16m 40s
verify (non-4626/otakar-getAmount_properties.conf --rule getAssetAmountForBuyAsset_funcProperty_L...	7m 26s
verify (non-4626/otakar-finishedRules.conf --rule whoCanChangeExposure whoCanChangeAccruedFees se...	40m 45s
verify (non-4626/otakar-OracleSwapFreezer.conf)	5m 13s
	2h 47m 28s

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