Release raylib 1.4.0

[tjammer]

• Fix buffer handling of raygui text boxes
• Port 7 new examples
• Fix documentation of raygui list view functions
• Enable FLAC format by default
• Use dune 3 and its new ctypes stanza

[shonfeder]

Looks like a few relevant CI failures due to the build config and dependencies:

• 4.04
  raygui.1.4.0 (failed: Unbound value String.index_opt)

• 4.14
  raylib.1.4.0
  revdeps
  raygui.1.3.0 (failed: Library "raylib_fixed_types" not found.)

• 5.2
  raylib.1.4.0
  revdeps
  raygui.1.3.0 (failed: Library "raylib_fixed_types" not found.)

For 4.04, maybe youjust want a lower bound on a more recent ocaml version?

The error in the latter two looks like

raygui.1.3.0 is not installed. Install it? [Y/n] y
The following actions will be performed:
=== install 1 package
  - install raygui 1.3.0

<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><><><>
-> retrieved raygui.1.3.0  (cached)
[ERROR] The compilation of raygui.1.3.0 failed at "dune build -p raygui -j 39 @install".

#=== ERROR while compiling raygui.1.3.0 =======================================#
# context              2.4.0~alpha1~dev | linux/x86_64 | ocaml-base-compiler.5.2.1 | file:///home/opam/opam-repository
# path                 ~/.opam/5.2/.opam-switch/build/raygui.1.3.0
# command              ~/.opam/opam-init/hooks/sandbox.sh build dune build -p raygui -j 39 @install
# exit-code            1
# env-file             ~/.opam/log/raygui-7-b2d70f.env
# output-file          ~/.opam/log/raygui-7-b2d70f.out
### output ###
# File "src/c/functions/dune", line 23, characters 44-62:
# 23 |  (libraries ctypes.stubs raygui_fixed_types raylib_fixed_types))
#                                                  ^^^^^^^^^^^^^^^^^^
# Error: Library "raylib_fixed_types" not found.
# -> required by library "raygui_functions" in _build/default/src/c/functions
# -> required by _build/default/src/c/c_generated_gui.o
# -> required by _build/default/src/c/dllraygui_c_stubs.so
# -> required by _build/install/default/lib/stublibs/dllraygui_c_stubs.so
# -> required by _build/default/raygui.install
# -> required by alias install

[tjammer]

raygui 1.3.0 doesn't build anymore with raylib 1.4.0. I fixed it with a version bound, but ran into other problems:

The CI wants to build raygui 1.3.0 if I change the opam file, but it doesn't seem to build anymore, and caused all CIs to fail.

[tjammer]

raygui 1.3.0 is broken somehow. We probably cannot remove it, but can we tag it as such?

conf-mesa is also broken for freebsd (and has been for some versions). This is another issue, and one I couldn't figure out.

[mseri]

Thanks