add force flag for cp helper

mission/sysDefs.h

@@ -242,19 +242,22 @@ class CpHelperParser {
   CpHelperParser(const uint8_t* data, size_t maxLen) : data(data), maxLen(maxLen) {}
 
   ReturnValue_t parse() {
-    if (maxLen < 1) {
+    if (maxLen < 2) {
       return SerializeIF::STREAM_TOO_SHORT;
     }
     recursiveOpt = data[0];
+    forceOpt = data[1];
     return parseDestTargetString(data + 1, maxLen - 1, destTgt);
   }
   const SourceTargetPair& destTgtPair() const { return destTgt; }
   bool isRecursiveOptSet() const { return recursiveOpt; }
+  bool isForceOptSet() const { return forceOpt; }
 
  private:
   const uint8_t* data;
   size_t maxLen;
   bool recursiveOpt = false;
+  bool forceOpt = false;
   SourceTargetPair destTgt;
 };