Publish fault detection metrics

[amathur1893]

*Fixes #:*#471

Description of changes: WIth this change we will start publishing metrics like Latency and failure for follower check and leader check.

Tests:

1. Tested using Docker
   Tmp file

^fault_detection/follower_check/6544/start
current_time:1602234524352
SourceNodeID:c765a93a762cd59dda8d3379b09a752a
TargetNodeID:b2a5a93a762cd59dda8d3379b09a752a
StartTime:1566413973072$
^fault_detection/follower_check/7627/finish
current_time:1602234524400
SourceNodeID:g52i9a93a762cd59dda8d3379b09a752a
TargetNodeID:b2a5a93a762cd59dda8d3379b09a752a
FinishTime:1566413986732
error:1$

Table created

sqlite> .tables
Latency_FollowerCheck     
Latency_LeaderCheck
Failure_FollowerCheck     
Failure_LeaderCheck     

Contents of the table

sqlite> select * from Latency_FollowerCheck;
c765a93a762cd59dda8d3379b09a752a|b2a5a93a762cd59dda8d3379b09a752a|14914.0|14914.0|14914.0|14914.0
g52i9a93a762cd59dda8d3379b09a752a|b2a5a93a762cd59dda8d3379b09a752a|13660.0|13660.0|13660.0|13660.0
sqlite> select * from Failure_FollowerCheck;
c765a93a762cd59dda8d3379b09a752a|b2a5a93a762cd59dda8d3379b09a752a|0.0|0.0|0.0|0.0
g52i9a93a762cd59dda8d3379b09a752a|b2a5a93a762cd59dda8d3379b09a752a|1.0|1.0|1.0|1.0

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[yojs]

The CI should pass for this PR to be merged. Currently there are a few checkstyle errors. Can we please fix them ?