Feature/grammar logits processor

3rdparty/dlpack/BUILD

@@ -0,0 +1,11 @@
+package(default_visibility = ["//visibility:public"])
+
+# Vendored dlpack header (single file). xgrammar's matcher.h includes
+# <dlpack/dlpack.h>, but xgrammar's upstream pulls dlpack as a git
+# submodule from github.com/dmlc/dlpack which is unreachable from the
+# internal build environment. We vendor the v0.8 header verbatim instead.
+cc_library(
+    name = "dlpack_headers",
+    hdrs = ["include/dlpack/dlpack.h"],
+    includes = ["include"],
+)