fix(dirman): add raw_path option to work with arbitrary filetype

[pysan3]

core.dirman.utils.expand_path is the function to resolve filepath with workspace notation ($<workspace>/).

This should work with arbitrary file type as it will be used to resolve files in for example .image $/relative/path/to/image.png, but currently, it is hardcoded to append .norg after the file path.

I've added an argument raw_path which, when is true, does not append the norg extension.

The previous calls to this function does not specify this arg, (hence nil) so we should have backwards compatibility.

Note

neorg/lua/neorg/modules/core/dirman/utils/module.lua

Lines 45 to 47 in 98f390d

	-- If the path isn't absolute (doesn't begin with `/` nor `~`) then prepend the current file's
	-- filehead in front of the path
	path = (vim.tbl_contains({ "/", "~" }, path:sub(1, 1)) and "" or (vim.fn.expand("%:p:h") .. "/")) .. path

Not in the scope of this PR but I don't think this works on Windows. I don't have an environment to test Windows so I'll leave it to someone else for a fix.

Possibly related: #241

[pysan3]

Required for this PR.

• fix(neorg): resolve workspace notation with image files 3rd/image.nvim#71

[vhyrro]

Looks good to me! That path logic should be ideally fixable with some vim.fs functions.