switch to xmake for package management (#611)

This change removes our dependency on vcpkg for package management, in favour of bringing some code in-tree in the `thirdparty` folder as well as using the xmake build-in package management feature. For the latter, all the package definitions are maintained in the zen repo itself, in the `repo` folder.

It should now also be easier to build the project as it will no longer depend on having the right version of vcpkg installed, which has been a common problem for new people coming in to the codebase. Now you should only need xmake to build.

* Bumps xmake requirement on github runners to 2.9.9 to resolve an issue where xmake on Windows invokes cmake with `v144` toolchain which does not exist
* BLAKE3 is now in-tree at `thirdparty/blake3`
* cpr is now in-tree at `thirdparty/cpr`
* cxxopts is now in-tree at `thirdparty/cxxopts`
* fmt is now in-tree at `thirdparty/fmt`
* robin-map is now in-tree at `thirdparty/robin-map`
* ryml is now in-tree at `thirdparty/ryml`
* sol2 is now in-tree at `thirdparty/sol2`
* spdlog is now in-tree at `thirdparty/spdlog`
* utfcpp is now in-tree at `thirdparty/utfcpp`
* xmake package repo definitions is in `repo`
* implemented support for sanitizers. ASAN is supported on windows, TSAN, UBSAN, MSAN etc are supported on Linux/MacOS though I have not yet tested it extensively on MacOS
* the zencore encryption implementation also now supports using mbedTLS which is used on MacOS, though for now we still use openssl on Linux
* crashpad
* bumps libcurl to 8.11.0 (from 8.8.0) which should address a rare build upload bug

2 files changed, 3 insertions, 3 deletions

diff --git a/src/zenstore/gc.cpp b/src/zenstore/gc.cpp
index e58bbb6e2..ba1bce974 100644
--- a/src/zenstore/gc.cpp
+++ b/src/zenstore/gc.cpp
@@ -636,7 +636,7 @@ KeepUnusedReferences(std::span<const IoHash> SortedUsedReferences, std::span<IoH
 	{
 		if (ReferencesRead != ReferencesWrite)
 		{
-			memcpy(ReferencesWrite, ReferencesRead, sizeof(IoHash::Hash) * Remaining);
+			memmove(ReferencesWrite, ReferencesRead, sizeof(IoHash::Hash) * Remaining);
 		}
 		ReferencesWrite += Remaining;
 	}
diff --git a/src/zenstore/xmake.lua b/src/zenstore/xmake.lua
index cf5f30d09..31289a573 100644
--- a/src/zenstore/xmake.lua
+++ b/src/zenstore/xmake.lua
@@ -7,5 +7,5 @@ target('zenstore')
     add_files("**.cpp")
     add_includedirs("include", {public=true})
     add_deps("zencore", "zenutil", "zenvfs")
-    add_packages("vcpkg::robin-map")
-    add_packages("vcpkg::eastl", {public=true});
+    add_deps("robin-map")
+    add_packages("eastl", {public=true});