[3PP] Added pugixml library

.gitmodules

@@ -100,3 +100,6 @@
 [submodule "third_party/zlib"]
 	path = third_party/zlib
 	url = https://github.com/madler/zlib.git
+[submodule "third_party/pugixml"]
+	path = third_party/pugixml
+	url = https://github.com/zeux/pugixml.git

premake5.lua

@@ -263,6 +263,7 @@ workspace("xenia")
   include("third_party/zarchive.lua")
   include("third_party/zstd.lua")
   include("third_party/zlib.lua")
+  include("third_party/pugixml.lua")
 
   if not os.istarget("android") then
     -- SDL2 requires sdl2-config, and as of November 2020 isn't high-quality on

src/xenia/kernel/premake5.lua

@@ -10,6 +10,7 @@ project("xenia-kernel")
     "aes_128",
     "fmt",
     "zlib",
+    "pugixml",
     "xenia-apu",
     "xenia-base",
     "xenia-cpu",

third_party/pugixml

@@ -0,0 +1 @@
+Subproject commit b2b466403084667c90a0f0cc4e960405cfc8117a

third_party/pugixml.lua

@@ -0,0 +1,10 @@
+group("third_party")
+project("pugixml")
+  uuid("d1089e5e-46ae-48c9-bee6-d38c674c8f61")
+  kind("StaticLib")
+  language("C++")
+  files({
+    "pugixml/src/pugiconfig.hpp",
+    "pugixml/src/pugixml.cpp",
+    "pugixml/src/pugixml.hpp",
+  })