Added Egyptian fractions in Lua
Merge pull request #278 from Yonaba/master

Added Egyptian fractions in Lua
Wrote heap_sort code in C & C++
Merge pull request #279 from Sweet-kid/master

Wrote heap_sort code in C & C++
Reorganized source files
Reorganized files
Reorganized some files
Reorganized files
Reorganized files
Merge pull request #280 from Yonaba/master

Reorganized some files