refactor: move streamline includes to forked submodule

.gitmodules

@@ -1,3 +1,7 @@
 [submodule "extern/CommonLibSSE-NG"]
 	path = extern/CommonLibSSE-NG
-	url = https://github.com/alandtse/CommonLibVR.git
+	url = https://github.com/alandtse/CommonLibVR.git
+
+[submodule "extern/Streamline"]
+	path = extern/Streamline
+	url = https://github.com/FlayaN/Streamline.git

CMakeLists.txt

@@ -43,6 +43,7 @@ find_package(cppwinrt CONFIG REQUIRED)
 find_package(unordered_dense CONFIG REQUIRED)
 find_package(efsw CONFIG REQUIRED)
 find_package(Tracy CONFIG REQUIRED)
+add_subdirectory(${CMAKE_SOURCE_DIR}/cmake/Streamline)
 
 target_compile_definitions(
 	${PROJECT_NAME}
@@ -74,6 +75,7 @@ target_link_libraries(
 	unordered_dense::unordered_dense
 	efsw::efsw
 	Tracy::TracyClient
+	Streamline
 )
 
 # https://gitlab.kitware.com/cmake/cmake/-/issues/24922#note_1371990

cmake/Streamline/CMakeLists.txt

@@ -0,0 +1,10 @@
+cmake_minimum_required(VERSION 3.21)
+
+add_library(Streamline INTERFACE)
+
+target_include_directories(
+  Streamline INTERFACE ${CMAKE_SOURCE_DIR}/extern/Streamline/include)
+
+if(MSVC)
+  target_compile_options(Streamline INTERFACE /wd5103)
+endif()