Move PeakTransform* and IPeak to Geometry from API

[OwenArnold]

This ticket is blocks : TRAC11872, TRAC11878

In order to determine if a peak should be deleted when a cursor passes over it exact (x,y and derived z) positions, we need to know if it intersects the peak. The easiest and best way to do this is to utilise the PeakShape of each Peak to return a PeakBoundingBox. Each subtype of Peak should be able to deliver a PeakBoundingBox as it quite a general concept. However, PeakBoundingBox is in Geometry and PeakShape is in the subpackage API. This ticket is concerned with moving the SC Peak transform and shape components into Mantid Geometry Crystal.

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Keywords: vates

[OwenArnold]

This issue was originally trac ticket 11868