Convert InputVerifier to rust

To establish some basic rust infrastructure for input code, convert the
InputVerifier into rust.

Currently, we use bindgen for interfacing between cpp and rust. In a
future CL, this may be changed to an aidl interface instead.

The logs and verifications can be enabled via:
adb shell setprop log.tag.InputTransportVerifyEvents DEBUG
adb shell setprop log.tag.InputVerifierLogEvents DEBUG
adb shell setprop log.tag.InputDispatcherVerifyEvents DEBUG

Bug: 271455682
Test: m inputflinger_tests && $ANDROID_HOST_OUT/nativetest64/inputflinger_tests/inputflinger_tests
Change-Id: I607fed9f6fc9c38e2c8392f59e9c4facdaf6c68a
diff --git a/services/inputflinger/Android.bp b/services/inputflinger/Android.bp
index ffcc967..86b3bde 100644
--- a/services/inputflinger/Android.bp
+++ b/services/inputflinger/Android.bp
@@ -230,6 +230,9 @@
         "inputflinger",
         "libinputflingerhost",
 
+        // rust targets
+        "libinput_rust_test",
+
         // native fuzzers
         "inputflinger_latencytracker_fuzzer",
         "inputflinger_cursor_input_fuzzer",