Migrate to zlib-ng, part 1: copy source code only (#102520)

* Bring in the zlib-ng source code into the repo but without plugging it in yet.
* Include the required zlib-ng license and version changes.
* Remove the zlib-ng/doc/ and zlib-ng/tests/ folders and mention this in the newly added zlib-ng-version.txt file.

THIRD-PARTY-NOTICES.TXT

@@ -98,6 +98,23 @@ https://zlib.net/zlib_license.html
 
 */
 
+License notice for zlib-ng
+-----------------------
+
+https://github.com/zlib-ng/zlib-ng/blob/develop/LICENSE.md
+
+(C) 1995-2024 Jean-loup Gailly and Mark Adler
+
+This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:
+
+The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+
+Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+
+This notice may not be removed or altered from any source distribution.
+
 License notice for Mono
 -------------------------------
 

src/native/external/cgmanifest.json

@@ -60,6 +60,16 @@
         }
       },
       "DevelopmentDependency": false
+    },
+    {
+      "Component": {
+        "Type": "git",
+        "Git": {
+          "RepositoryUrl": "https://github.com/zlib-ng/zlib-ng",
+          "CommitHash": "74253725f884e2424a0dd8ae3f69896d5377f325"
+        }
+      },
+      "DevelopmentDependency": false
     }
   ]
 }

src/native/external/zlib-ng-version.txt

@@ -0,0 +1,6 @@
+v2.1.6
+74253725f884e2424a0dd8ae3f69896d5377f325
+
+https://github.com/zlib-ng/zlib-ng/releases/tag/2.1.6
+
+We have removed the zlib-ng/docs/ and zlib-ng/test/ folders from our local copy as these files are not needed for our compilation.

src/native/external/zlib-ng/.codecov.yaml

@@ -0,0 +1,27 @@
+codecov:
+  max_report_age: off
+  notify:
+    wait_for_ci: false
+  require_ci_to_pass: false
+comment:
+  require_base: false
+  require_head: false
+coverage:
+  status:
+    project:
+      default:
+        threshold: 0.07
+fixes:
+- '/home/actions-runner/_work/zlib-ng/zlib-ng::'
+- '/home/actions-runner/_work/zlib-ng/zlib-ng/build/::'
+ignore:
+- usr/include/.*
+- /usr/include/.*
+- /build/usr/include/.*
+- usr/lib/.*
+- /usr/lib/.*
+- /build/usr/lib/.*
+- usr/lib64/.*
+- /usr/lib64/.*
+- /build/usr/lib64/.*
+- _deps/**/*

src/native/external/zlib-ng/.gitattributes

@@ -0,0 +1,8 @@
+* text=auto
+*.abi text eol=lf
+*.c text
+*.h text
+*.sh text eol=lf
+crc32_braid_tbl.h hooks-max-size=1000000
+Makefile text
+configure text eol=lf

src/native/external/zlib-ng/.gitignore

@@ -0,0 +1,97 @@
+*.diff
+*.patch
+*.orig
+*.rej
+
+*~
+*.a
+*.lo
+*.o
+*.dylib
+
+*.gcda
+*.gcno
+*.gcov
+
+/benchmark_zlib
+/example
+/example64
+/examplesh
+/gtest_zlib
+/libz.so*
+/libz-ng.so*
+/makefixed
+/minigzip
+/minigzip64
+/minigzipsh
+/switchlevels
+/zlib.pc
+/zlib-ng.pc
+
+.DS_Store
+*_fuzzer
+*.obj
+*.exe
+*.pdb
+*.exp
+*.lib
+*.dll
+*.res
+foo.gz
+*.manifest
+*.opensdf
+*.sln
+*.sdf
+*.vcxproj
+*.vcxproj.filters
+*.vcxproj.user
+.vs
+
+CMakeCache.txt
+CMakeFiles
+Testing
+/*.cmake
+*.stackdump
+*._h
+zconf.h
+zconf.h.cmakein
+zconf.h.included
+zconf-ng.h
+zconf-ng.h.cmakein
+ztest*
+/test/CTestTestfile.cmake
+/test/cmake_install.cmake
+
+configure.log
+a.out
+
+/Makefile
+/arch/arm/Makefile
+/arch/generic/Makefile
+/arch/power/Makefile
+/arch/x86/Makefile
+.kdev4
+*.kdev4
+
+/Debug
+/example.dir
+/minigzip.dir
+/zlib.dir
+/zlibstatic.dir
+/test/*.dir/
+/build/
+/build[.-]*/
+/btmp[12]/
+/pkgtmp[12]/
+
+/.idea
+/cmake-build-debug
+/x64/Debug/
+/x64/Release/
+/win32/Debug/
+/win32/Release/
+/ARM*/Debug/
+/ARM*/Release/
+MinSizeRel
+RelWithDebInfo
+/_deps/googletest*

src/native/external/zlib-ng/.shellcheckrc

@@ -0,0 +1 @@
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