Lodash upgrade and cleanup (#2990)

* Upgrades lodash
* Replaces some usage of lodash with native functions.
* Adds linting to catch cases where native functions could be used instead of lodash functions
* Renamed testTools to testUtils

Co-authored-by: Joshi <simplyrender@gmail.com>
Co-authored-by: David Tsay <david.e.tsay@nasa.gov>
Co-authored-by: David Tsay <3614296+davetsay@users.noreply.github.com>
Co-authored-by: Andrew Henry <akhenry@gmail.com>

src/plugins/LADTable/components/LADTable.vue

@@ -75,7 +75,7 @@ export default {
             this.items.push(item);
         },
         removeItem(identifier) {
-            let index = _.findIndex(this.items, (item) => this.openmct.objects.makeKeyString(identifier) === item.key);
+            let index = this.items.findIndex(item => this.openmct.objects.makeKeyString(identifier) === item.key);
 
             this.items.splice(index, 1);
         },