update c language standard
add cmocka folder and ignore binaries/headers
add cmocka to test target
add cmocka driver class
fix variable length array initialization error
fix lookup paths for headers and libraries
add basic passing test
wire tests up to cmocka driver so xcode can run them on cmd+u
add sample failure test, move cmocka headers into pch, add error message for driver failure
move binary tree tests to cmocka
rename bt tree driver class name
rework objc bt class to be a driver
normalize names of main test functions and test driver test methods
rename sample test driver file
fix sample test function call after rename
fix memory leak for tests that don't rely on setup function
rework brace usage
refine test whitespace usage
add a thing doer that is dependent on a thing factory and a thing display to test cmocka mocking
add thing doer test files