redesign SkiaEGLBackend interface: default MSAA=0, validate grContext, fix maxSurfaceSampleCountForColorType, add early return for existing surface

Widget: redesign interface for Skia backend

update easel_wl submodule: logger improvements

fix logger: use {} format strings, add warning() level, dprintf atomic writes, SkLogHandler interface

fix logger: format strings, dprintf atomic writes, SkLogHandler, warning level

to homepc

to homepc

refactoring egl backend

to homepc

to homepc

refactoring egl backend

refactoring egl backend

refactoring egl backend

refactoring egl backend

refactoring egl backend

refactoring egl backend

refactoring for egl_backend

refactoring for egl_backend

update easel_wl: fix thread_local, xkb assertions, protocol composite test

update easel_wl: fix thread_local linkage, add xkb assertions, protocol composite test; fix main.cpp: return on GPU error, clean unused code

переход на OutputGlobal и обновление логирования

fix thread_local linkage, add xkb map assertions, protocol composite test

move gen-wayland-protocols to build dir and configure out-of-source build

add protocols mixin