New CRAN Release - Added TB report + summary plot

Feature updates

• Added support for annual_change to summarise_tb_burden and added validating tests.
• Added support for rates and proportions to summarise_tb_burden and added validating tests.
• Added a new function - plot_tb_burden_summary. Function wraps summarise_tb_burden and allows all in one - summary plotting. Inspired by this case study.
• Added a rmarkdown parameterised country level report on TB.
• Added a report generating button to the dashboard generated by run_tb_dashboard.
• Added render_country_report to generate a TB report for a given country.
• Tweaked map_tb_burden to not use geom_path for country outlines.
• Added a smooth argument to plot_tb_burden to allow smooth trend lines to be plotted (derived using - - ggplot2::geom_smooth).
• Tweaked line thickness in plot_tb_burden to improve plot appearance.
• Added legend argument to all plotting functions to allow control of the legend appearance.

Package updates

• Added script to generate hexsticker
• Added hexsticker to README
• Added DOI link to Zenodo.
• Updated tests to account for dplyr 8.0 release and vdiffr updates.
• Added itdepends to package report functionality.