ENH: pass plotting kws to globalreport function

[mbaak]

ENH: added plotting kwargs to correlation_report function.

• plot_phik_matrix_kws: passed to plot_correlation_matrix() to plot the phik matrix.
• plot_global_phik_kws: passed to plot_correlation_matrix() to plot the global-phik vector.
• plot_significance_matrix_kws: passed to plot_correlation_matrix() to plot significance matrix.
• plot_outlier_significance_kws: passed to plot_correlation_matrix() to plot the outlier significances.

When provided these values update the default plotting values.

Closes issue: https://github.com/KaveIO/PhiK/issues/58