Move dead submodules in-tree

Signed-off-by: swurl <swurl@swurl.xyz>

externals/breakpad/src/common/md5.h

@@ -0,0 +1,28 @@
+// Copyright 2007 Google LLC
+// Author: liuli@google.com (Liu Li)
+#ifndef COMMON_MD5_H__
+#define COMMON_MD5_H__
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace google_breakpad {
+
+typedef uint32_t u32;
+typedef uint8_t u8;
+
+struct MD5Context {
+  u32 buf[4];
+  u32 bits[2];
+  u8 in[64];
+};
+
+void MD5Init(struct MD5Context *ctx);
+
+void MD5Update(struct MD5Context *ctx, unsigned char const *buf, size_t len);
+
+void MD5Final(unsigned char digest[16], struct MD5Context *ctx);
+
+}  // namespace google_breakpad
+
+#endif  // COMMON_MD5_H__