move sse2neon to submodule (#539)

.gitmodules

@@ -2,3 +2,6 @@
 	path = parallel-rdp/parallel-rdp-standalone
 	url = https://github.com/gopher64/parallel-rdp-standalone.git
 	branch = gopher64
+[submodule "src/compat/sse2neon"]
+	path = src/compat/sse2neon
+	url = https://github.com/DLTcollab/sse2neon.git

build.rs

@@ -128,7 +128,7 @@ fn main() {
 
     if arch == "aarch64" {
         let simd_bindings = bindgen::Builder::default()
-            .header("src/compat/sse2neon/v1.8.0/sse2neon.h")
+            .header("src/compat/sse2neon/sse2neon.h")
             .allowlist_function("_mm_setzero_si128")
             .allowlist_function("_mm_set_epi8")
             .allowlist_function("_mm_movemask_epi8")

src/compat/aarch64.c

@@ -1,4 +1,4 @@
-#include "src/compat/sse2neon/v1.8.0/sse2neon.h"
+#include "src/compat/sse2neon/sse2neon.h"
 
 // Static wrappers