Move manifest_fixer to a python_binary_host module

In preparation for making it use multiple files so that some
implementation can be shared with a new tool.

Also make manifest_fixer_test a python_test_host, and add it
to TEST_MAPPING.

Test: m checkbuild
Change-Id: Iaae177efcb978187b126d90359b82cdfd3176857

scripts/Android.bp

@@ -0,0 +1,33 @@
+python_binary_host {
+    name: "manifest_fixer",
+    main: "manifest_fixer.py",
+    srcs: [
+        "manifest_fixer.py",
+    ],
+    version: {
+        py2: {
+            enabled: true,
+        },
+        py3: {
+            enabled: false,
+        },
+    },
+}
+
+python_test_host {
+    name: "manifest_fixer_test",
+    main: "manifest_fixer_test.py",
+    srcs: [
+        "manifest_fixer_test.py",
+        "manifest_fixer.py",
+    ],
+    version: {
+        py2: {
+            enabled: true,
+        },
+        py3: {
+            enabled: false,
+        },
+    },
+    test_suites: ["general-tests"],
+}

scripts/TEST_MAPPING

@@ -0,0 +1,8 @@
+{
+  "presubmit" : [
+    {
+      "name": "manifest_fixer_test",
+      "host": true
+    }
+  ]
+}

scripts/manifest_fixer_test.py

@@ -425,4 +425,4 @@ class AddExtractNativeLibsTest(unittest.TestCase):
 
 
 if __name__ == '__main__':
-  unittest.main()
+  unittest.main(verbosity=2)