New SmartNode, C API for DLL

Changes

• Added support for building as shared library (DLL)
• Releases binary now includes FastNoise.dll
• C API for creating bindings in other languages
• New SmartNode class replaces std::shared_ptr
• SmartNodeManager uses memory pools to allocate node classes in
• Fixed CMake install not working correctly with find_package
• Node editor view can now be dragged with right click instead of middle mouse

Note

• 4D not fully implemented for all nodes