Changes

0032879: Visualization, AIS_ViewController - define separate gesture mappings for dragging

Fixed problem of usage of objects dragging during zoom and pan
Added new draw command to change gesture for muse buttons
Added test

0032681: Data Exchange - Missed dimension after STEP export

Changed level of detalisation (TopAbs_EDGE -> TopAbs_VERTEX by default)

0026578: Modeling Algorithm - Exceptions in offset operation with intersection

Added test cases

0033398: Modeling Algorithms - ShapeUpgrade_UnifySameDomain throws exception on specific STEP model

Added additional checking in static method FindCoordBounds to avoid processing null pcurves

0031217: Modeling Algorithms - Exception is raised in GeomFill_SectionPlacement when parallel path and SectionAxis

Added protection from crashes when IsParallel

0033421: Modeling Algorithms - ShapeUpgrade_UnifySameDomain throws exception

In method ShapeUpgrade_UnifySameDomain::IntUnifyFaces() the searched edge is finally checked that it is not empty before accessing it.

0033436: Data Exchange, DE_Wrapper - DEXCAFCascade_ConfigurationNode::BuildProvider() not initialize provider

Pass pointer to DEXCAFCascade_ConfigurationNode to DEXCAFCascade_Provider;
Remove forcible manual reset of Provider's node in DE_Wrapper::FindProvider() to verify that all specializations of configuration node work properly without necessity of workarounds.

0033420: Modeling Algorithm - Missing inner part after offset operation

Added condition to not remove face image, consisting only of invalid edges for artifactically invalid face.
This face image should be connected with other image faces minimum through the edge.

0033445: Coding - Changing binary XOR in boolean expression

Changed binary XOR to the ternary operator.