Add algorithms to create learning kit in any language

[iedcbootcampcec]

[akshitaPrajapati]

Added implementation of Dijkstra Algorithm in Java. Please merge the PR under hacktoberfest.

[mohanhbk]

Added Python Selection sort algorithm, verify and approve

[amarjeetsinha]

Added number count in C++, verify and approve

[udita-22]

Added Insertion of Element in an Array in C, verify and approve