fix: update DICOMSR and Measurement Panel copy to use L/W (#2174)

* fix: update DICOMSR and Measurement Panel copy to use L/W

* functional viewport

* support the active viewport for snapshot

* Support empty viewport case

* bump cs-tools to pick up misc. fixes

platform/viewer/package.json

@@ -68,7 +68,7 @@
     "classnames": "^2.2.6",
     "core-js": "^3.2.1",
     "cornerstone-math": "^0.1.8",
-    "cornerstone-tools": "^4.22.0",
+    "cornerstone-tools": "5.1.2",
     "cornerstone-wado-image-loader": "^3.1.2",
     "dcmjs": "0.16.1",
     "dicom-parser": "^1.8.3",