Segments: Compute a Box for the bound instead of a rect
SegmentGuarantor: updated to take advantage of Box output in Segments
SegmentFeatureReader: a ProcessNode to handle reading Feature from a SegmentStore
Untested code, probably does not compile
SegmentStore: update comment to reflect pending change in Feature retrieval
LocalSegmentStore: use unordered_set instead of SegmentSet, which doesn't seem to work
SegmentReader: Features fetching moved to SegmentFeatureReader
CoreSolver: use precomputed Features from SegmentStore. Currently buggy
coresolvertest: ability to disable individual tests, updated to recent code