Open Type Indicator

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• Open Drive: Strong initial movement in one direction, indicating a clear market bias.
• Open Test Drive: Market tests one direction, then reverses sharply, revealing initial rejection.
• Open Auction: Price oscillates near the open, showing balance between buyers and sellers.
• Open Rejection: Market opens, moves in one direction, then rejects and reverses completely.
• Open Rotation: Price moves back and forth around the open, indicating market indecision.
• Open Balance: Market stays in a narrow range near the open, showing equilibrium.
• Open Drive Fade: Strong initial move fades back towards the open, indicating weak follow-through.
• Open Rejection Reverse: Market opens, moves one way, reverses with a retracement, indicating rejection.

Create a stack data structure to store them