Initial commit of Arduino libraries

RadioLib/extras/cppcheck/cppcheck.sh

@@ -0,0 +1,20 @@
+#! /bin/bash
+
+file=cppcheck.txt
+cppcheck --version
+cppcheck src --enable=all --force --inline-suppr --suppress=ConfigurationNotChecked --suppress=unusedFunction --quiet >> $file 2>&1
+echo "Cppcheck finished with exit code $?"
+
+error=$(grep ": error:" $file | wc -l)
+warning=$(grep ": warning:" $file | wc -l)
+style=$(grep ": style:" $file | wc -l)
+performance=$(grep ": performance:" $file | wc -l)
+echo "found $error erros, $warning warnings, $style style and $performance performance issues"
+if [ $error -gt "0" ] || [ $warning -gt "0" ] || [ $style -gt "0" ] || [ $performance -gt "0" ]
+then
+  cat $file
+  exitcode=1
+fi
+
+rm $file
+exit $exitcode