Dynamic Prog ques added

[mnb27]

C++ language Added all variations of famous 0-1 knapsack problem

• 0-1 Knapsack
• Subset Sum
• Equal sum partition
• Count of subset sum
• Minimum subset sum difference
• Count of subset sum with given difference

Added all variations of famous LCS problem

• Longest common subsequence
• Longest common substring
• Print LCS
• Print LC substring
• shortest super subsequence
• Longest Repeating subsequence

[mnb27]

Please add "Hactoberfest-accepted" label to this PR. Kindly look into it. @Kanhakhatri065 @ephremdeme

[Kanhakhatri065]

Done.