prodigenr 0.7.0

Breaking changes

• New projects have Git added from the beginning, so don't need to use
  setup_with_git() (#148).
• rmarkdown::draft() can't have Quarto docs in the template/
  folders, so instead move them as generic Quarto template files.
• Rename doc/ to docs/ in the basic analysis project folder. This
  is to match the semantics that the docs/ folder usually will have
  more than one document in it (#149).
• It isn't always useful to have the report created when the project
  is setup, so adding the report via create_report() is removed from
  project_setup() (#142).
• Use Quarto instead of R Markdown for template files (#150).

Features and additions

• When creating a new .gitignore, include .quarto and .DS_Store
  files (#141) as well as .Rbuildignore files (#143).
• New projects have .Rproj set with same options as
  usethis::use_blank_slate("project") (#144).
• Move gert to imports, since it makes more sense that it should be
  a hard dependency as the project is an opinionated project creator
  (#145).

Fixes and improvements

• The title field in the DESCRIPTION file is needed by many
  usethis functions, so it is added to the created DESCRIPTION file
  (#137).