Joystick support is not implemented just yet, not difficult but it
requires some work...

Fixes: c3b948b1 ("Replaced skybox HDR image")

CMake: Reuse libraries found by glfw CMake config

if (${PLATFORM} MATCHES "Desktop")
  target_link_libraries(${RAYLIB}_shared glfw ${GLFW_LIBRARIES})

was never true because PLATFORM STREQUAL "PLATFORM_DESKTOP"...

This fixes #551 and makes the changes suggested in #552 (commited as 965cc8ab)
unnecessary.

Fixes: e1e036a6 ("Disable glfw only when it is not found and not external", #558)

This function was added in text module as GenImageFontAtlas()

Rotate a Vector3 by a Quaternion

Fix incorrect log agent names

Added support OpenBSD, NetBSD, DragonFly OS

Fisable glfw only when it is not found and not external.

Replaced old dwarf model

Note that HDR exposured possibilities are not used on this example...

Replaced by medieval 3d assets

Added: data to CharInfo struct
Added: LoadFontData()
Added: GenImageFontAtlas()
Removed: LoadFontEx()
Removed: LoadTTF() [internal]
Some code tweaks

- GetImageData()
- GetImageDataNormalized()

...by emscripten glfw javascript implementation

Reviewed: GetImageData()
Reviewed: ImageFormat()

ImageDraw() code tweak

Reduced draw calls