Two Sum,Sort 012, Majority Element, Find Duplicates, Make Zeros,Rotate, Transpose,Spirally Traversing a Matrix, Boolean Matrix, maxSubArray Notes & Code Added

[shivanshsinghx365]

• [x] Two Sum Notes added
• [x] Two Sum Code added
• [x] Sort 0,1,2 notes added
• [x] Sort 0,1,2 code added
• [x] Majority Element Notes added
• [x] Majority Element Code added
• [x] Find duplicates notes added
• [x] Find duplicates code added
• [x] Make Zeros Notes Added
• [x] Make Zeros Code Added
• [x] Rotate, Transpose Notes added
• [x] Rotate, Transpose Codes added
• [x] Spirally Traversing a Matrix Notes Added
• [x] Spirally Traversing a Matrix Code Added
• [x] Boolean Matrix Notes Added
• [x] Boolean Matrix Code Added
• [x] maxSubArray Notes Added
• [x] maxSubArray Code Added

@chaharnishant11 kindly review these changes once