Update licences for GLFW

vendor/README.md

@@ -44,4 +44,12 @@ SDL2 TTF relies on 3rd party libraries `zlib`, available under the ZLIB license,
 
 ## Vulkan
 
-The Vulkan 3D graphics API are automatically generated from headers provided by Khronos, and are made available under the [Apache License, Version 2.0](https://github.com/KhronosGroup/Vulkan-Headers/blob/master/LICENSE.txt).
+The Vulkan 3D graphics API are automatically generated from headers provided by Khronos, and are made available under the [Apache License, Version 2.0](https://github.com/KhronosGroup/Vulkan-Headers/blob/master/LICENSE.txt).
+
+## GLFW
+
+Bindings for the multi-platform library for OpenGL, OpenGL ES, Vulkan, window and input API [GLFW](https://github.com/glfw/glfw).
+
+`GLFW.dll` and `GLFW.lib` are available under GLFW's [zlib/libpng](https://www.glfw.org/license.html) license.
+
+See also LICENSE.txt in the `glfw` directory itself.

vendor/glfw/LICENSE

@@ -1,22 +0,0 @@
-Copyright (c) 2002-2006 Marcus Geelnard
-
-Copyright (c) 2006-2019 Camilla Löwy
-
-This software is provided 'as-is', without any express or implied
-warranty. In no event will the authors be held liable for any damages
-arising from the use of this software.
-
-Permission is granted to anyone to use this software for any purpose,
-including commercial applications, and to alter it and redistribute it
-freely, subject to the following restrictions:
-
-1. The origin of this software must not be misrepresented; you must not
-   claim that you wrote the original software. If you use this software
-   in a product, an acknowledgment in the product documentation would
-   be appreciated but is not required.
-
-2. Altered source versions must be plainly marked as such, and must not
-   be misrepresented as being the original software.
-
-3. This notice may not be removed or altered from any source
-   distribution.