Issue #19 Issue #18 SingleNode and LinkedList classes added
Merge branch 'contribution' of https://github.com/FunkyCat/bakge into contribution

Conflicts:
	include/bakge/data/LinkedList.h
	src/CMakeLists.txt
	test/CMakeLists.txt
	test/linkedlist.cpp
Merge branch 'contribution' of https://github.com/palistov/bakge into contribution