hashing

stantargets 0.1.1

Invalidating changes

• To align with ropensci/targets#1244 and ropensci/targets#1262, switch the hashing functions from digest::digest() to secretbase::siphash13().

Other changes

• Remove temporary files generated CmdStan.
• Add the new description arguments of tar_target() (`targets >= 1.5.1.9001).
• Append model file information to the target descriptions using tar_map() (tarchetypes >= 0.7.12.9001).