Add transparent pointer overlay

Credits to @tabletseeker

Misc/TransparentPointer/Android.mk

@@ -0,0 +1,8 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := optional
+LOCAL_PACKAGE_NAME := treble-overlay-misc-transparent-pointer
+LOCAL_MODULE_PATH := $(TARGET_OUT_PRODUCT)/overlay
+LOCAL_IS_RUNTIME_RESOURCE_OVERLAY := true
+LOCAL_PRIVATE_PLATFORM_APIS := true
+include $(BUILD_PACKAGE)

Misc/TransparentPointer/AndroidManifest.xml

@@ -0,0 +1,10 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+        package="me.phh.treble.overlay.misc.spen_pointer"
+        android:versionCode="1"
+        android:versionName="1.0">
+        <overlay android:targetPackage="android"
+            android:requiredSystemPropertyName="persist.sys.overlay.trans_pointer"
+            android:requiredSystemPropertyValue="true"
+            android:priority="8005"
+            android:isStatic="true" />
+</manifest>

overlay.mk

@@ -88,6 +88,7 @@ PRODUCT_PACKAGES += \
 	treble-overlay-misc-dt2w \
 	treble-overlay-misc-minimal-brightness \
 	treble-overlay-misc-spen-pointer \
+	treble-overlay-misc-transparent-pointer \
 	treble-overlay-moto-e5 \
 	treble-overlay-moto-e5plus \
 	treble-overlay-moto-e6plus \