* 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>
* Rename DUCK_MAX_STATES to kDuckMaxStates
* Rename DuckMoveOffset to kDuckMoveOffset
* Rename DuckAnimationFlyToWater to kDuckAnimationFlyToWater
* Rename DuckAnimationSwim to kDuckAnimationSwim
* Rename DuckAnimationDrink to kDuckAnimationDrink
* Rename DuckAnimationDoubleDrink to kDuckAnimationDoubleDrink
* Rename DuckAnimationFlyAway to kDuckAnimationFlyAway
* Rename DuckAnimations to kDuckAnimations
* Rename ReplayVersion to kReplayVersion
* Rename ReplayMagic to kReplayMagic
* Rename ReplayCompressionLevel to kReplayCompressionLevel
* Rename NormalRecordingChecksumTicks to kNormalRecordingChecksumTicks
* Rename SilentRecordingChecksumTicks to kSilentRecordingChecksumTicks
* Rename WindowButtonsOnTheLeftDefault to kWindowButtonsOnTheLeftDefault