[CDB-READER] Update _SpringResult

docs/cdb/test_setup.rst

@@ -91,4 +91,5 @@ the temporary environment variable approach, open an MSYS2 MINGW64 shell, naviga
     tests/cable_load
     tests/cable_result
     tests/spring_data
+    tests/spring_result
     tests/truss_data

docs/cdb/tests/spring_result.rst

@@ -0,0 +1,43 @@
+SpringResult
+------------
+
+Related test suite: ``test_spring_result.py``
+
+Expected CDB file name: ``SPRING_RESULT.cdb``
+
+Runs with: SOFiSTiK 2025
+
+Version: 1
+
+.. code-block:: text
+
+    +PROG SOFIMSHA
+    HEAD GEOMETRY REV-1-SOF-2025
+        SYST 3D GDIR NEGZ GDIV 10
+
+        NODE NO 01 X 0.0 Y 0.0 Z 0.0 FIX F
+        NODE NO 12 X 1.0 Y 0.0 Z 0.0 FIX F
+        NODE NO 09 X 0.0 Y 1.0 Z 0.0 FIX MM
+
+        GRP 10 TITL 'SPRING 1'
+            SPRI NO 2 NA 01 NE 09 CP 1.0E2 CT 0.0 CM 0.0
+        GRP 11 TITL 'SPRING 2'
+            SPRI NO 3 NA 09 NE 12 CP 0.0 CT 1.0E2 CM 1.0E5
+    END
+
+    +PROG SOFILOAD
+    HEAD LOADS
+        LC 10 TITL 'LOAD PXX'
+            NODE 9 TYPE PXX +1.0
+        LC 11 TITL 'LOAD PYY'
+            NODE 9 TYPE PYY +10.0
+    END
+
+    +PROG ASE
+    HEAD LINEAR
+        SYST PROB LINE
+
+        LC 1000 DLZ 0.0
+            LCC 10 FACT 1.0
+            LCC 11 FACT 1.0
+    END