Save files in case of accidental deletion during makefile work for test
Work on makefile and sources for unit testing
Unit test OS init
Test timer tick and add few other functions
Readd core scheduler
Add delay function and test on board
Add delay cancel function and test on board
Unit test delay functions
Unit test delayed tasks with scheduler
Add remove task functions and test on board
Unit test remove task functions
Add and unit test scheduler lock and unlock
Modify .gitignore to ignore test objects
Add and test suspend and resume task functions
Add and test semaphore system
Add and test functions to change task priority
Modify .gitignore to reflect old structure from refactoring