* Consolidate util/Math.hpp into core/Numerics.hpp
* Remove branching; replace isPowerOf2 with std::has_single_bit
* Add templated types to floor2 and ceil2
* ImageIndex typedef moved from ImageId.hpp to new file ImageIndexType.h.
* SPR_NONE redefined as ImageIndex type in ImageIndexType.h.
* SPR_NONE renamed to kSpriteIdNull
* Remove casts and enum all sprites as ImageIndex
* Remove sprites.h include from LandTool.h, RideData.h
* Ensure all RTD headers include sprites.h
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Co-authored-by: Aaron van Geffen <aaron@aaronweb.net>
* Introduce isToolActive function
* Ride window: use isToolActive instead of gCurrentToolWidget
* Footpath window: use isToolActive instead of gCurrentToolWidget
* Staff window: use isToolActive instead of gCurrentToolWidget
* MazeConstruction window: use isToolActive instead of gCurrentToolWidget
* Guest window: use isToolActive instead of gCurrentToolWidget
* Map window: use isToolActive instead of gCurrentToolWidget
* LandRights window: use isToolActive instead of gCurrentToolWidget
* Replace SceneryToolIsActive legacy function with calls to isToolActive
* ClearScenery window: use isToolActive instead of gCurrentToolWidget
* Scenery window: use isToolActive instead of gCurrentToolWidget
* Water window: use isToolActive instead of gCurrentToolWidget
* Land window: use isToolActive instead of gCurrentToolWidget
* Widget: replace WidgetIsActiveTool with isToolActive
* RideConstruction window: use isToolActive instead of gCurrentToolWidget
* Ride: use isToolActive instead of gCurrentToolWidget
* TrackDesignPlace window: use isToolActive instead of gCurrentToolWidget
* StaffList window: use isToolActive instead of gCurrentToolWidget
* ViewClipping window: use isToolActive instead of gCurrentToolWidget
* PatrolArea window: use isToolActive instead of gCurrentToolWidget
* TileInspector window: use isToolActive instead of gCurrentToolWidget
* Park window: use isToolActive instead of gCurrentToolWidget
* Add new park entrance placement window
* Start entrance tool as soon as window opens;
* Rename constants to conform to current code standards
* Increment PARK_FILE_CURRENT_VERSION
* Increment kNetworkStreamVersion
Co-authored-by: Aaron van Geffen <aaron@aaronweb.net>
