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/displayLayout/components/LayoutFrame.vue

@@ -40,6 +40,7 @@
 
 <script>
 import LayoutDrag from './../LayoutDrag'
+import _ from 'lodash'
 
 export default {
     inject: ['openmct'],