Reference: 597ae79a86
597ae79a86
This change removes internal/glfw/glfw, that is a DLL loader, and replaces the usages with internal/glfwwin, that is a pure Go implementation of GLFW for Windows. The build tag `ebitenexternaldll` is also removed. Closes #1764
internal/glfwwin is a pure Go implementation of GLFW for Windows. Updates #1764