Create scenarios for scale up with single ns with data using datagen to replace use of busybox cases in oadp-helpers/templates/internal_data/tests.yaml

• Create additional cases for 1k, 2k, 5k in scenario yaml moving over to datagen from busybox.

• I suggest duping existing busybox scenarios and just replacing first integer for testcase name.

• Lets see what the generation time looks like for 1k and 2k we may need to tweak the dataset creation to avoid sequential looping as currently it 'fires and forgets' but then validates ansible play sequentially.