Describe the feature:

Improve gomega matchers.

Describe the solution you'd like

1. Allow transforms. For example the following should work (fixes Check if param is gt than #350)

kernel-param:
  net.core.somaxconn:
    value:
      gt: 5000

2. Add more gomega matchers, for example, the matchallelements matcher for slices.
   https://onsi.github.io/gomega/#gstruct-testing-complex-data-types