You can only get certain brands of formula in Turkey, Aptamil is one but I can't recall any others, so you may want to take some with you. Buy your nappies and wipes there, Pampers are Prima out there but I used Molfix, Can Baby and Evy Baby and they were all very good. Take some nappy sacks though as they don't have them.
You may want to try an get your baby to drink some water as it will be very hot, if she will then make usre it is bottled water as tap water has a high mineral content that may upset her tummy.
I used to breastfeed my baby everywhere, on the beach, in restaurants, on the bus etc. and no-one ever took notice.
If you do want a baby bath you can uy them in the big supermarkets or you can get a big washing up bowl and use that instead, otherwise you can use the sink if you are in an apartment or villa but take a plug sa they often don't have one.
A UV suit is a great idea and make sure you take plenty of high factor baby sun cream. Get a sun canopy for your buggy and use a sarong over it held in place with a couple of clothes pegs to keep the sun off your baby if it gets too hot.
As the others have said Turks love babies so your DD will get spolied out there.
I lived in Turkey when my DD was a baby an we always go back as we love it so much there. Have a great time. Where are you going?