Adds mobilecommons library dependency

#### What's this PR do?
Adds mobilecommons npm library as a dependency

#### Where should the reviewer start?
package.json

#### How should this be manually tested?
Run npm install and verify that the library is downloaded properly

#### Any background context you want to provide?
We should be using the npm package for mobielcommons api related stuff.  This may mean we will need to issue updates to the library.  At the very least, it is added here for now, so it is not forgotten.

#### What are the relevant tickets?
#12