simChef 0.0.3

When creating simulation R Markdown, we now output full-sized figures by
default, rather than thumbnails (#125).
Renamed various docs-related functions; old names are deprecated but not removed:
- create_doc_template() is now init_docs().
- create_rmd() is now render_docs().
- set_rmd_options() is now set_doc_options().
vary_across can now handle multiple DGP/Method objects at once
(#126).
create_docs() now returns the .Rmd file, allowing users to directly edit
the simulation docs by hand, and allows for more bare-bones docs outputs
(#139).
Added the "Setting up your simulation" vignette with recommendations for
creating simulation projects that use simChef
(#152).
Added a helper function create_sim() for initializing a simulation project and
run_tests() for running testthat tests of a user's custom simulation
functions (#155).
Made quality of life improvements to the library of Evaluator/Vizualizer
helper functions (#158).
The default Visualizer plotting theme is now ggplot, which can now be
changed globally using the simChef.plot_theme option, e.g., to get the
previous default use options(simChef.plot_theme = "vthemes")
(#161).
Bug fixes and CI updates:
- #129
- #134

Provide feedback