The API is integrated into the `WindowEvent::Pointer*` API and is
present in form of `TabletTool` variant on corresponding data entries.
For now implemented for Web, Windows, and with limitations for Wayland.
Fixes#99.
Co-authored-by: daxpedda <daxpedda@gmail.com>
Requires getting permission from the user to get "detailed" support.
Also enables users to go fullscreen on specific monitors.
Exposes platform-specific orientation API.
Most functionality depends on browser support, currently only Chromium.
* Clean up macOS and iOS monitor code a bit
* Clean up window size methods
Use `setContentSize`, `setContentMinSize`, `setContentMaxSize` and `contentRectForFrameRect` to let the windowing system figure out the required scaling, instead of us doing it manually.
* Use a flipped NSView coordinate system
* Clean up window position methods
