license metadata xml notice files

Introduce the below command-line tool:

xmlnotice outputs a NOTICE.xml file constructed from the license
texts of the transitive closure of dependencies.

Bug: 68860345
Bug: 151177513
Bug: 151953481
Bug: 213388645
Bug: 210912771

Test: m all
Test: m systemlicense
Test: m xmlnotice; out/soong/host/linux-x85/xmlnotice ...

where ... is the path to the .meta_lic file for the system image. In my
case if

$ export PRODUCT=$(realpath $ANDROID_PRODUCT_OUT --relative-to=$PWD)

... can be expressed as:

${PRODUCT}/gen/META/lic_intermediates/${PRODUCT}/system.img.meta_lic

Change-Id: I267effd3a1c1b981bcdc5e058dce561a2d4a7948
diff --git a/tools/compliance/Android.bp b/tools/compliance/Android.bp
index e74986d..d5965f8 100644
--- a/tools/compliance/Android.bp
+++ b/tools/compliance/Android.bp
@@ -86,6 +86,16 @@
     testSrcs: ["cmd/textnotice/textnotice_test.go"],
 }
 
+blueprint_go_binary {
+    name: "xmlnotice",
+    srcs: ["cmd/xmlnotice/xmlnotice.go"],
+    deps: [
+        "compliance-module",
+        "blueprint-deptools",
+    ],
+    testSrcs: ["cmd/xmlnotice/xmlnotice_test.go"],
+}
+
 bootstrap_go_package {
     name: "compliance-module",
     srcs: [