Add C++ Data Structures

[Sanskritis101]

I would like to contribute some data structures like linked lists, stacks, and queues in C++. Please add a "C++ Data Structures" folder and assign me this issue.
Regards,
Sanskriti

[tomriddle77]

tag the PR here

[SohanChidrawar]

Can you assign this issue to me??

[pritam1309]

can you assign this to me ; )

[Ashish93-mrx]

i would like add DSA graphs in c++,can you please assign me this issue.