Fix HTML5 docs

Fix HTML5 help files for CRAN.

FLFLL 6.4.1 compatibility

Version 0.2.0

• Add a max_sims argument to run_flfll() because -nSims in FLFLL can no longer safely be set to 1. (FLFLL 6.4.1 now uses -nSims to set the number of CRM cohort files.)
• Manually disable packetization with the -packet flag in FLFLL >= 6.4.1.

LazyData note

Remove LazyData in the DESCRIPTION to address CRAN check notes.

FACTS file modification

Version 0.1.0

• Add new function read_facts() to read arbitrary XML fields of FACTS files.
• Add new function write_facts() to programmatically generate modified copies of FACTS files.

Address CRAN feedback

• Use single quotes to reference software names in the DESCRIPTION.
• Avoid \dontrun{} in examples. Instead, check if the required system dependencies are configured. Most of the examples need to be skipped because rfacts relies on system dependencies that are proprietary and not publicly available. To obtain the system dependencies, contact Berry Consultants: https://www.berryconsultants.com/software.
• Only write to temp files in the README, examples, tests, and vignettes.
• Mention CRAN in docs.

First release

rfacts is simply an R interface to the Fixed and Adaptive Clinical Trial Simulator (FACTS) by Berry Consultants: https://www.berryconsultants.com/software. The documentation of FACTS itself describes all the underlying statistical methodology.