docs: add note about ir & deprecation of getReserveDataExtended #60

Job	Run time
verify (AToken.conf)	1m 24s
verify (ReserveConfiguration.conf)	22s
verify (UserConfiguration.conf)	1m 40s
verify (VariableDebtToken.conf)	1m 19s
verify (NEW-pool-no-summarizations.conf)	24m 28s
verify (NEW-pool-simple-properties.conf --rule cannotDepositInInactiveReserve --msg "cannotDeposi...	6m 52s
verify (NEW-pool-simple-properties.conf --rule cannotDepositInFrozenReserve --msg "cannotDepositI...	14m 12s
verify (NEW-pool-simple-properties.conf --rule cannotDepositZeroAmount --msg "cannotDepositZeroAm...	10m 16s
verify (NEW-pool-simple-properties.conf --rule cannotWithdrawZeroAmount --msg "cannotWithdrawZero...	4m 48s
verify (NEW-pool-simple-properties.conf --rule cannotWithdrawFromInactiveReserve --msg "cannotWit...	7m 34s
verify (NEW-pool-simple-properties.conf --rule cannotBorrowZeroAmount --msg "cannotBorrowZeroAmou...	12m 50s
verify (NEW-pool-simple-properties.conf --rule cannotBorrowOnInactiveReserve --msg "cannotBorrowO...	14m 24s
verify (NEW-pool-simple-properties.conf --rule cannotBorrowOnReserveDisabledForBorrowing --msg "c...	21m 51s
verify (NEW-pool-simple-properties.conf --rule cannotBorrowOnFrozenReserve --msg "cannotBorrowOnF...	19m 57s
	2h 21m 57s

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