Add Deselection of Contact to Protocol + Goodies#63

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AchintyaAshok wants to merge 3 commits intoipraba:masterfrom

AchintyaAshok:passthrough_selected_contacts

Commits on Jan 28, 2018

Give the ability to customize the message for contacts access, if it isn't authorized. Also, added the capability to take the user directly to settings to allow access.
AchintyaAshok
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Commits on Jan 29, 2018

Setting public access to that member
AchintyaAshok
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Adding deslection property to delegate protocol. Also now we can set the selected contacts before loading the picker.
AchintyaAshok
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