Add halide dependency

I'm using this to make some pieces of vision processing faster.

Change-Id: Ib20f28433e9783a644c19a1ff6d8082c93a91bf7
diff --git a/debian/halide.BUILD b/debian/halide.BUILD
new file mode 100644
index 0000000..fc43fd0
--- /dev/null
+++ b/debian/halide.BUILD
@@ -0,0 +1,26 @@
+cc_library(
+    name = "halide",
+    srcs = ["lib/libHalide.a"],
+    hdrs = glob(["include/*.h"]),
+    includes = ["include"],
+    visibility = ["//visibility:public"],
+)
+
+cc_library(
+    name = "gengen",
+    srcs = ["tools/GenGen.cpp"],
+    visibility = ["//visibility:public"],
+    deps = [
+        ":halide",
+    ],
+)
+
+cc_library(
+    name = "runtime",
+    hdrs = [
+        "include/HalideBuffer.h",
+        "include/HalideRuntime.h",
+    ],
+    includes = ["include"],
+    visibility = ["//visibility:public"],
+)