fix: Fir 13884 fix import backward compatibil (#173)

* fix backward compatibility issues

* add imports

Author: stepansergeevitch

src/firebolt/common/exception.py

@@ -0,0 +1,2 @@
+# Prevent backward compatibility errors related to new module structure
+from firebolt.utils.exception import *  # NOQA

src/firebolt/common/token_storage.py

@@ -0,0 +1,2 @@
+# Prevent backward compatibility errors related to new module structure
+from firebolt.utils.token_storage import *  # NOQA

src/firebolt/common/urls.py

@@ -0,0 +1,2 @@
+# Prevent backward compatibility errors related to new module structure
+from firebolt.utils.urls import *  # NOQA

src/firebolt/common/util.py

@@ -0,0 +1,2 @@
+# Prevent backward compatibility errors related to new module structure
+from firebolt.utils.util import *  # NOQA