Created views pager plugin and passed saved configs to drupalsettings.

Arpit kayarerequested to merge
issue/pager_load_more-3317043:3317043-views-pager-compatible into 1.0.x

Closes #3317043Pager_load_more-3317043Pager_load_more-3317043-2Pager_load_more-3317043-3

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