[Var] Update gitignore.

git-svn-id: https://source.openmpt.org/svn/openmpt/trunk/OpenMPT@23677 56274372-70c3-4bfc-bfc3-4c3a0b034d27

Author: manxorist

.gitignore

@@ -678,6 +678,48 @@
 /include/premake/build/vs2022/.vs
 /include/premake/build/vs2022/bin
 /include/premake/build/vs2022/obj
+/include/pthread-win32/.gitattributes
+/include/pthread-win32/.github
+/include/pthread-win32/.gitignore
+/include/pthread-win32/Bmakefile
+/include/pthread-win32/CMakeLists.txt
+/include/pthread-win32/ChangeLog.md
+/include/pthread-win32/GNUmakefile
+/include/pthread-win32/GNUmakefile.in
+/include/pthread-win32/Makefile
+/include/pthread-win32/Nmakefile
+/include/pthread-win32/Nmakefile.tests
+/include/pthread-win32/README.md
+/include/pthread-win32/aclocal.m4
+/include/pthread-win32/appveyor.yml
+/include/pthread-win32/builddmc.bat
+/include/pthread-win32/cmake
+/include/pthread-win32/common.mk
+/include/pthread-win32/configure.ac
+/include/pthread-win32/install-sh
+/include/pthread-win32/mamafile.py
+/include/pthread-win32/manual
+/include/pthread-win32/tests
+/include/pthread-win32/util
+/include/pthread-win32/version.rc
+/include/pthread-win32/windows
+/include/pthread-win32/docs/ANNOUNCE.md
+/include/pthread-win32/docs/BUGS.md
+/include/pthread-win32/docs/ChangeLog.md
+/include/pthread-win32/docs/FAQ.md
+/include/pthread-win32/docs/LICENSE.md
+/include/pthread-win32/docs/MAINTAINERS.md
+/include/pthread-win32/docs/NEWS.md
+/include/pthread-win32/docs/NOTICE.md
+/include/pthread-win32/docs/PROGRESS.md
+/include/pthread-win32/docs/README.Borland.md
+/include/pthread-win32/docs/README.CV.md
+/include/pthread-win32/docs/README.NONPORTABLE.md
+/include/pthread-win32/docs/README.Watcom.md
+/include/pthread-win32/docs/README.WinCE.md
+/include/pthread-win32/docs/README.md
+/include/pthread-win32/docs/TODO.md
+/include/pthread-win32/docs/WinCE-PORT.md
 /include/pugixml/CMakeLists.txt
 /include/pugixml/docs
 /include/pugixml/scripts