Add cider-eval-dwim

[samhedin]

If no region is active, eval the toplevel form with cider-eval-defun-at-point.
If a region is active, run cider-eval-region.
Tiny function, but I find it useful. If there are any other situations/commands to add I'm all ears.

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• The commits are consistent with our contribution guidelines. checkdoc stuck: "Documentation style: Checking..."
• You've added tests (if possible) to cover your change(s). No tests. Are they possible?
• All tests are passing (eldev test)
• All code passes the linter (eldev lint) which is based on elisp-lint. There are warnings but they are unrelated to my changes.
• You've updated the changelog (if adding/changing user-visible functionality)
• You've updated the user manual (if adding/changing user-visible functionality).

[vemv]

Thanks for the PR!

You can merge master in, in order for the CI warning to disappear.

[bbatsov]

Please use a keybinding in the eval keymap, instead of this one.

[samhedin]

Is C-c C-v C-d appropriate?

[bbatsov]

Yeah, that's fine, just keep in mind that all keybindings in the eval keymap should have both a variant with and without Control - C-c C-v d and C-c C-v C-d. (some people don't like letting go of Control in complex keybindings)

[samhedin]

C-c C-v C-d was already taken by eval-defun so I changed d to s.

[bbatsov]

I'm guessing you should also mention this in the docstring.

[vemv]

Thanks much for your contribution! I squashed it with some docstring and changelog tweaks, preserving attribution.