Revert "Fixed data not being moved on reallocation"

This reverts commit 185ffe1f578e98aa1c1bc5d5842e0c824e78c9fc.

Calle! Separate refactorizations from changes!
Rename Vector.hpp to kth_cprog_vektor.cpp
Update Vector path in vector_test makefile
Add performance settings to VS solution
Make DEFAULT_SIZE static
Test that push_back reallocates memory as necessary and correctly
Reallocate memory correctly in insert(index, element)
Redefine a loop index as size_t