basic prommise test for arduino
Added the possibilty to chain defered functions by returning the closure's prommise in the onFulFilled or onRejected.
use boollean flags to determine if is rejected or resolved.
so NULL can be used as a return value in the handlers
fixed typo
Introduced a simple scheduler for testing
added andThenAndThen to simplify chaining
added a countdown timer to the shedulers
lined up api for countdown timer to scheduler
joined scheduler and countdown timer under a common ancestor
Merge ../c/arduino_promise_test
Added Schedulers as a library
added NoPromisses as a library