Explicit style declarations

[CommonClimate]

Since Pyleoclim's PR #632, no style is now being defined upon the package import, so lines to the effect of pyleo.set_style() need to be added to the preamble of each notebook.

• L0_a_quickstart.ipynb
• L0_basic_MSES_manipulation.ipynb
• L0_basic_ts_manipulation.ipynb
• L0_loading_to_series.ipynb
• L0_paleopandas.ipynb
• L0_working_with_geoseries.ipynb
• L1_figures_with_multiple_panels.ipynb
• L1_filtering_and_detrending.ipynb
• L1_surrogates.ipynb
• L1_uniform_time_sampling.ipynb
• L1_working_with_age_ensembles.ipynb
• L2_correlations.ipynb
• L2_outlier_detection.ipynb
• L2_principal_component_analysis.ipynb
• L2_singular_spectrum_analysis.ipynb
• L2_spectral_analysis.ipynb
• L2_tracing_transformations.ipynb
• L2_wavelet_analysis.ipynb

[CommonClimate]

divide and conquer is of the essence here...