Add-setDefaultPerPage Method

[lrljoe]

This adds to the pagination methods available. Presently setPerPage is used for setting the per-page value Therefore using it in configure() or similar will over-ride anything defined via the querystring or session

To rectify this, setDefaultPerPage is being added, to be used to set a default per-page value, which will only be used if perPage is the default (10) value, otherwise it will respect what is currently set (e.g. via the session/querystring)

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.14%. Comparing base (52dac06) to head (0174d79).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #1671 +/- ## ============================================= + Coverage 88.12% 88.14% +0.01% - Complexity 1310 1312 +2 ============================================= Files 123 123 Lines 3100 3105 +5 ============================================= + Hits 2732 2737 +5 Misses 368 368 ```

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