Add a tool to list contents of .img file

list_image <img> lists the contents of the file.

For example:
  $ m microdroid
  $ list_image <path to microdroid.img>
  ./
  ./apex/
  ./bin
  ..

Bug: 195425111
Bug: 225121718
Test: list_image .img
Change-Id: I7c4fca184751ba20066fd25fa4c366a955dbabf6

scripts/Android.bp

@@ -188,3 +188,11 @@ python_binary_host {
         "get_clang_version.py",
     ],
 }
+
+python_binary_host {
+    name: "list_image",
+    main: "list_image.py",
+    srcs: [
+        "list_image.py",
+    ],
+}