fixed isd variable again

tests/FrameCameraTests.cpp

@@ -13,6 +13,7 @@ using json = nlohmann::json;
 class FrameIsdTest : public ::testing::Test {
    protected:
 
+      csm::Isd isd;
 
    virtual void SetUp() {
       std::ifstream isdFile("data/simpleFramerISD.json");
@@ -36,7 +37,7 @@ class FrameSensorModel : public ::testing::Test {
    protected:
 
       UsgsAstroFrameSensorModel *sensorModel;
-      csm::Isd isd;
+      
       void SetUp() override {
          sensorModel = NULL;
          std::ifstream isdFile("data/simpleFramerISD.json");