Copy changes from the no-history fork, generated back in 2023

Original commit message:
> commit f138311d2d2e0cc9ba0496d523bb46f2c1c9fb73
> Author: rtk0c <[email protected]>
> Date:   Wed Sep 20 23:58:58 2023 -0700
>
>     Copy from the PlasticSCM repo, replace vendored glm wtih conan

In reality, this also introduced a few uncommitted changes in the
original PlasticSCM repo. See the modified and new files in this patch.

1 files changed, 0 insertions, 57 deletions

diff --git a/3rdparty/glfw/source/deps/getopt.h b/3rdparty/glfw/source/deps/getopt.h
deleted file mode 100644
index e1eb540..0000000
--- a/3rdparty/glfw/source/deps/getopt.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Copyright (c) 2012, Kim Gräsman
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *  * Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *  * Neither the name of Kim Gräsman nor the names of contributors may be used
- *    to endorse or promote products derived from this software without specific
- *    prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL KIM GRÄSMAN BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef INCLUDED_GETOPT_PORT_H
-#define INCLUDED_GETOPT_PORT_H
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-extern const int no_argument;
-extern const int required_argument;
-extern const int optional_argument;
-
-extern char* optarg;
-extern int optind, opterr, optopt;
-
-struct option {
-  const char* name;
-  int has_arg;
-  int* flag;
-  int val;
-};
-
-int getopt(int argc, char* const argv[], const char* optstring);
-
-int getopt_long(int argc, char* const argv[],
-  const char* optstring, const struct option* longopts, int* longindex);
-
-#if defined(__cplusplus)
-}
-#endif
-
-#endif // INCLUDED_GETOPT_PORT_H