C++ API Migration

The following changes were made in the C++ API:

• Removed the Unigine::MeshSkinned class (see the Mesh File Formats article for details)
• Unigine::ObjectMesh class renamed Unigine::ObjectMeshStatic
• Unigine::Buffer class renamed Unigine::Blob
• Added Unigine::Path class
• Added Unigine::bvec4 structure
• Added Unigine::EnginePtr class
• Added Unigine::PlayerActor, Unigine::PlayerPersecutor, Unigine::PlayerSpectator classes
• Added Unigine::Splash class
• Removed Unigine::Mesh::Vertex structure
• Added Unigine::Mesh::Weight structure
• Removed Unigine::MeshSkinned::Frame structure
• Removed Unigine::MeshSkinned::Vertex structure
• Removed Unigine::MeshSkinned::Weight structure
• Removed Unigine::LightProb class
• Removed Unigine::LightSpot class
• Removed Unigine::DecalDeferredOrtho class
• Removed Unigine::DecalDeferredMesh class
• Removed Unigine::DecalDeferredProj class
• Removed Unigine::DecalObject class
• Removed Unigine::DecalObjectOrtho class
• Removed Unigine::DecalObjectProj class
• Removed Unigine::DecalObjectOmni class
• Removed Unigine::DecalTerrainOrtho class
• Removed Unigine::DecalTerrainProj class
• Added the following node interfaces:
  • Unigine::ObjectDynamic
  • Unigine::ObjectGui
  • Unigine::ObjectGuiMesh
  • Unigine::ObjectParticles
  • Unigine::ObjectVolumeBox
  • Unigine::ObjectVolumeSphere
  • Unigine::ObjectVolumeOmni
  • Unigine::ObjectVolumeProj
  • Unigine::ObjectWater
  • Unigine::ObjectWaterMesh
  • Unigine::Decal
  • Unigine::DecalOrtho
  • Unigine::DecalProj
  • Unigine::DecalMesh
  • Unigine::Field
  • Unigine::FieldAnimation
  • Unigine::FieldSpacer
  • Unigine::LightEnvironmentProbe
  • Unigine::Mesh::Weight Structure
  • Unigine::Physical
  • Unigine::PhysicalForce
  • Unigine::PhysicalNoise
  • Unigine::PhysicalTrigger
  • Unigine::PhysicalWater
  • Unigine::PhysicalWind
  • Unigine::WorldClutter
  • Unigine::WorldCluster
  • Unigine::WorldOccluder
  • Unigine::WorldOccluderMesh
  • Unigine::WorldOccluderTerrain
  • Unigine::WorldTransformPath
  • Unigine::WorldTransformBone
  • Unigine::WorldExpression