Pipeline improvements (#964)

* Fix bug with toll-gate validation against master
* Change cppcheck to not attempt to validate headers directly and
  to run on the entire codebase in the pipeline.
* Support running Arduino test and examples build in parallel

.mystools/cppcheck/options.sh

@@ -5,6 +5,7 @@ OPTIONS="--quiet                                      \
 	--force                                             \
 	--enable=style,information                          \
 	-DCPPCHECK                                          \
+	--language=c++                                      \
 	--library=${LIBRARY:-avr}                           \
 	--platform="${TOOLCONFIG}"/${PLATFORM:-avr.xml}     \
  	--includes-file="${TOOLCONFIG}"/includes.cfg	      \

.mystools/cppcheck/run.sh

@@ -7,11 +7,15 @@
 # --cached or <no arg> for changed
 if [[ $# = 0 ]]; then
 	for file in $(modifiedSourceFiles); do
-		runBundle $file
+		if [[ $file != *.h ]]; then
+			runBundle $file
+		fi
 	done
 elif [[ $1 = '--cached' ]]; then
 	for file in $(stagedSourceFiles); do
-		runBundle $file
+		if [[ $file != *.h ]]; then
+			runBundle $file
+		fi
 	done
 else
 	eval "set -- $(git rev-parse --sq --prefix "$GIT_PREFIX" "$@")"