up until `downtime`

* origin/master:
  improve symlink handling (close #58)
  fix `setup-update` flow on macos
  cpr: fix comment typo
  add link to gpg gist

finished

* origin/master:
  gpg/key helpers merged into `gpg-helper`
  `ssh*` helpers merged into `ssh-helper`
  `{edit,setup}-dorothy*` merged into `dorothy`
  rm-*: use native `find` conventions
  cpr: major rework for better option handling
  fs-filename: support edge cases, add help
  add `.github` with standard bevry template
  add `.vscode` to ensure consistent formatting

* origin/master:
  gpg-helper: got it going with the rewrite from earlier
  add support for `* help`, and filter action early
  dorothy: fix `dorothy theme`
  config-helper: fix `--columns` parsing
  echo-quote: support ' " inside strings, by supporting a single layer of escaped quotes
  dorothy: fix fresh installs, fix mapfile shim
  dorothy: fix --help
  dorothy: trial mode now compat with recent changes
  dorothy: merge `select-theme`, revise trial mode

* origin/master:
  setup-bin, setup-util: prefer XDG_BIN_HOME
  `gpg-helper permissions` will report dupe gnupg dirs
  gpg-helper: fix comment typo
  dorothy: zshenv goes in $HOME (#116)
  complete `ssh-helper`, `GNUPGHOME` support, add `echo-file`
  setup-git: improvements around GPG

The new convention that is being rolled out is less error prone, faster, more detailed in its assistance, and more easily customised as the command expands.

Fixes the breakage of env setup, as `setup-environment-commands` as calling `is-help` which is not yet in the PATH, and especially now as it is now deleted.

- `does-url-contain` to `fetch-contains`
- `http-ok` to `fetch-ok`
- `http-status` to `fetch-status`

…tomisability

…thers

- flags now support for `setup-util`
- `echo-eval` only trims the arguments it needs to
- `eval-collapse` now properly works around nested calls within functions
- `is-quiet` now names `echo-quiet`, which includes the `|| :` check which would otherwise cause error 96 crashes
- new conventions for `open-app`, `get-app`, `get-random-number`

- `date-next-year` now uses a `—format=…` flag

… modern conventions

…ariable

stdinargs changes:

- `noact` is now `no_args_nor_stdin`
- `line` is fallback for `inline`
- add `no_stdin` and `no_args`
- cleaner code
- `require_stdin` option

These changes allow more robust usage, such as using args and stdin, in the case of `contains-lineq

as intense_yellow is not readable on light terminal themes

… mode

fs-temp: add `--dirname`

- icloud doesn't support compression
- personal and business gmail labels differ

added modern conventions

- local vars get underscore prefix convention
- fix `PKGUTIL`
- more aliases
- `INSTALLER` temp is now made by `fs-temp`

- `CONVENTIONS.md`
- `setup-util-formatting`