Plots now handle horizontal_tail:center new naming

[ScottDelbecq]

This is a minor PR to enable to handle a new geometry naming for horizontal tail (data:geometry:horizontal_tail:root:chord → data:geometry:horizontal_tail:center:chord) in the plots. The modification does not affect the compatibility with old naming

[codecov[bot]]

Codecov Report

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

Project coverage is 85.23%. Comparing base (50bc36a) to head (ed3a0cc).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #546 +/- ## ======================================= Coverage 85.22% 85.23% ======================================= Files 138 138 Lines 6377 6379 +2 Branches 932 933 +1 ======================================= + Hits 5435 5437 +2 Misses 785 785 Partials 157 157 ```

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