message: AliFemtoConfigObject - BuildMap: Add explicit "const char*" value operator method, add special `insert` method
diff: @@ -300,6 +300,7 @@ public:
  // -- custom operator() methods --
  BuildMap& operator()(const Key_t &key, const TString &val) { fMap.insert(std::make_pair(key, val.Data())); return *this; };
  + BuildMap& operator()(const Key_t &key, const char* val) { fMap[key] = StringValue_t(val); return *this; }
  operator AliFemtoConfigObject() {
  return AliFemtoConfigObject(std::move(fMap));
  @@ -450,6 +451,11 @@ public:
  IMPL_INSERT(Float_t, kFLOAT, fValueFloat);
  IMPL_INSERT(TString, kSTRING, fValueString);
  + void insert(const Key_t &key, const AliFemtoConfigObject &obj) {
  + if (!is_map()) { return; }
  + fValueMap[key] = obj;
  + }
  +
  #undef IMPL_INSERT
  /// Checks for existence of key in this object.
  