Move InputConsumer into separate files

This helps to keep track of things, and it also allows easier deletion
in the future.

Bug: 311142655
Test: none
Change-Id: Iece2bf6857ab05f86072031a4cf3a36f843b1634
diff --git a/libs/input/Android.bp b/libs/input/Android.bp
index 6b8bc01..65e93a9 100644
--- a/libs/input/Android.bp
+++ b/libs/input/Android.bp
@@ -204,6 +204,7 @@
     srcs: [
         "AccelerationCurve.cpp",
         "Input.cpp",
+        "InputConsumer.cpp",
         "InputDevice.cpp",
         "InputEventLabels.cpp",
         "InputTransport.cpp",