partition 0.1.2

• Required ggplot2 version 3.3.0 or higher due to a bug fix related to stacked area charts
• Added ggcorplot to Suggests for use in the vignette
• Revamped the intro vignettes to be clearer and with better examples using the Baxter data.
• Added microbiome data from https://doi.org/10.1186/s13073-016-0290-3 as 5 exported data sets: baxter_clinical, baxter_otu, baxter_family, baxter_genus, and baxter_data_dictionary (#16)
• fixed partial match warning in measure_min_icc() (b382caa)
• added an issue template