Fix/suppress incident* google-explicit-constructor warnings

* Add explicit to conversion constructors/operators
* Remove redundant explicit of copy constructors

Bug: 28341362
Test: make with WITH_TIDY=1 DEFAULT_GLOBAL_TIDY_CHECKS=-*,google-explicit-constructor
Change-Id: I26a11bb798d25605577269ed340e97afc8566960
diff --git a/cmds/incidentd/src/Section.cpp b/cmds/incidentd/src/Section.cpp
index 72a4103..bb5221c 100644
--- a/cmds/incidentd/src/Section.cpp
+++ b/cmds/incidentd/src/Section.cpp
@@ -410,7 +410,7 @@
     bool workerDone;
     status_t workerError;
 
-    WorkerThreadData(const WorkerThreadSection* section);
+    explicit WorkerThreadData(const WorkerThreadSection* section);
     virtual ~WorkerThreadData();
 };