Dumpsys sensorservice --proto

Add protobuf dumpsys of sensorservice. Primarily used by incident
service to capture an incident report proto.

Command to invoke (any of the following after lunch and env setup):
$ adb shell dumpsys sensorservice --proto
$ adb shell incident 3053
$ incident_report 3053

Bug: 146086105
Test: Execute the above commands and compare the output against dumpsys
      sensorservice

Change-Id: I9d7af7d4bc25fa485bbc2933fbb8322307780989
diff --git a/services/sensorservice/SensorFusion.h b/services/sensorservice/SensorFusion.h
index 8c0fbf9..66a7290 100644
--- a/services/sensorservice/SensorFusion.h
+++ b/services/sensorservice/SensorFusion.h
@@ -90,7 +90,9 @@
     float getPowerUsage(int mode=FUSION_9AXIS) const;
     int32_t getMinDelay() const;
 
-    void dump(String8& result);
+    void dump(String8& result) const;
+    void dump(util::ProtoOutputStream* proto) const;
+    void dumpFusion(FUSION_MODE mode, util::ProtoOutputStream* proto) const;
 };