Release clock 0.1.0

[DavisVaughan]

Prerequisites:

• vctrs 0.3.7 with rcrd fix
• Possibly add vec-proxy methods if it becomes a generic (Add vec-ptype methods #177)
• Remove remote on vctrs and require new version
• Remove remote on tzdb

First release:

• usethis::use_cran_comments()
• Proof read Title: and Description:
• Check that all exported functions have @returns and @examples
• Check that Authors@R: includes a copyright holder (role 'cph')
• Check licensing of included files
• Review https://github.com/DavisVaughan/extrachecks
• Update installation notes in README

Prepare for release:

• devtools::build_readme()
• urlchecker::url_check()
• devtools::check(remote = TRUE, manual = TRUE)
• devtools::check_win_devel()
• rhub::check_for_cran()
• rhub::check(platform = 'ubuntu-rchk')
• rhub::check_with_sanitizers()
• Review pkgdown reference index for, e.g., missing topics
• Draft blog post

Submit to CRAN:

• usethis::use_version('minor')
• devtools::submit_cran()
• Approve email

Wait for CRAN...

• Accepted 🎉
• usethis::use_github_release()
• usethis::use_news_md()
• usethis::use_dev_version()
• Update install instructions in README
• Finish blog post
• Tweet
• Add link to blog post in pkgdown news menu