Added HIDL based software implementation of gatekeeper

This patch adds a HIDL based software implementation of gatekeeper based
on libgatekeeper.

Also adds OWNER files to the vts test and default implementation
directories.

Test: Manually tested in emulator. Changing passwords and login worked.
      VtsHalGatekeeperV1_0TargetTest
      gatekeeper-software-device-unit-tests
Change-Id: I632aeb6677640c133ec1b79e72568840adbc0550
Merged-In: I632aeb6677640c133ec1b79e72568840adbc0550
diff --git a/gatekeeper/1.0/software/Android.bp b/gatekeeper/1.0/software/Android.bp
new file mode 100644
index 0000000..148c989
--- /dev/null
+++ b/gatekeeper/1.0/software/Android.bp
@@ -0,0 +1,28 @@
+cc_binary {
+    name: "android.hardware.gatekeeper@1.0-service.software",
+    defaults: ["hidl_defaults"],
+    relative_install_path: "hw",
+    vendor: true,
+    init_rc: ["android.hardware.gatekeeper@1.0-service.software.rc"],
+
+    srcs: [
+        "service.cpp",
+        "SoftGateKeeperDevice.cpp",
+    ],
+
+    shared_libs: [
+        "android.hardware.gatekeeper@1.0",
+        "libbase",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "libutils",
+        "liblog",
+        "libcrypto",
+        "libgatekeeper",
+    ],
+
+    static_libs: ["libscrypt_static"],
+
+    vintf_fragments: ["android.hardware.gatekeeper@1.0-service.software.xml"],
+}