* deps/wxWidgets: Disable EGL for wxGLCanvas
To work around <https://github.com/supermerill/SuperSlicer/issues/1093>.
* Fix USE_GLCANVAS_EGL=OFF for only Linux Builds
* Add -r flag to BuildLinux.sh to skip ram check
* Add support for AppImage build in containers.
* Add GitHub Action Workflow to Build AppImage
* Update AppImage-Builder to use upload-artifact v3
Co-authored-by: Zhaofeng Li <hello@zhaofeng.li>