v0.8.6

• New module tm_g_ci was added for confidence interval plots.
• New module tm_t_ancova was added for analysis of variance summary tables.
• Refactored all modules using the redesigned rtables and tern packages.
• Enhanced modules. They now take advantage of data_extract_spec and data_merge_module functionality from teal.
• Reduced clutter from repeated datasets in the encodings panels.
• Updated all modules to use OptionalSelectInput for conf_level.
• Added vignette about substitute which can be helpful when developing analysis template functions for teal modules.