Add v2 crbox corners

CR_BOX.json

@@ -0,0 +1,22 @@
+{
+    "parameterSets": {
+        "crbox-v2": {
+            "$fn": "100",
+            "bottomThiccness": "2",
+            "filterThiccness": "45",
+            "filterYThickness": "5.5",
+            "footDepth": "10",
+            "footEnable": "0",
+            "footInset": "0",
+            "footShape": "0",
+            "footWidth": "54",
+            "insideCornerStyle": "0",
+            "mirrored": "false",
+            "pieceDimensions": "[150, 186, 10]",
+            "pieceWallThiccness": "2"
+        }
+    },
+    "fileFormatVersion": "1",
+    "parameterSets": "",
+    "parameterSets": ""
+}