created advanced structures for decision making + associated unit tests
Interval, now with includes method;
	also records the problem's dimension
	and is tested
ChoicePicker: selectContainer & prepareContainers - OK
ChoiceMaker: refactoring - extracted Interval probability calculation
fleshed out Picker concept
integrated picker into the rest of the code;
minor TODO list update
need to integrate into main then live test
integrated choicePicker option into main;
another minor TODO lsit update
not really sure
derp proofing & fixing