Add gauge 4896 (#4919)

* Add new Gauge component

Co-authored-by: Charles Hacskaylo <charlesh88@gmail.com>
Co-authored-by: Jamie V <jamie.j.vigliotta@nasa.gov>
Co-authored-by: John Hill <john.c.hill@nasa.gov>
Co-authored-by: Andrew Henry <akhenry@gmail.com>

index.html

@@ -77,7 +77,7 @@
 
 
         openmct.install(openmct.plugins.LocalStorage());
-      
+
         openmct.install(openmct.plugins.example.Generator());
         openmct.install(openmct.plugins.example.EventGeneratorPlugin());
         openmct.install(openmct.plugins.example.ExampleImagery());