Upgrade to Angular 1.7 and other outdated dependencies

[maxceem]

Our application uses many dependencies which are outdated and have various security issues, see:

• Angular 1.4.14 ->1.7.9 as per automatic dependbot PR: Bump angular from 1.4.14 to 1.7.9 #127
• Lodash 4.2.1 to 4.17.13 as per automatic dependbot PR Bump lodash from 4.2.1 to 4.17.13 #136. Be careful as the is breaking change (_ is no longer global), see Revert "Bump lodash from 4.2.1 to 4.17.13" #135
• https://github.com/topcoder-platform/admin-app/security - 36 dependencies with issues
• run npm audit:

  found 268 vulnerabilities (108 low, 56 moderate, 103 high, 1 critical) in 6097 scanned packages
    run `npm audit fix` to fix 186 of them.
    45 vulnerabilities require semver-major dependency updates.
    37 vulnerabilities require manual review. See the full report for details.
  

The main challenge is to upgrade Angular from 1.4.14 to 1.7.9 as every step 1.4 -> 1.5, 1.5 -> 1.6 and 1.6 -> 1.7 has some breaking changes https://docs.angularjs.org/guide/migration