new periods --- dynasties of islamic Sind

Hello, @tdziemia 

here is a new period to have added:

Add under Sultanate of Sindh

History: Sultan of Sindh 

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1) Samma dynasty (1336–1524 AD)

examples: samma dynasty 

Rulers to add:

• Nizamuddin II
• Ferozuddin

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2)Tarkhan dynasty (1554–1593 AD)

examples:Arghun Tarkhans

Rulers to add:

• Muhammad Baqi Tarkhan

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here are all, regards