Feat: Coc-cursors - Add a way to duplicate range.

[Guilherhast]

Is your feature request related to a problem? Please describe.

If we select a range with coc-cursors-range there is no way you can select the same range again.

Example:

	document.getElementById();
	document.getElementById();
	document.getElementsByClassName();
	document.getElementsByTagName();

If I select the document word I can go to the next occurrence of the word.
But if I select something like: .get I can't do this.

Describe the solution you'd like

It would be nice If there were functions like cursors-duplicate-range and cursors-skip-range to this.

Alternatively, there could be a variable that holds the currently selected range ( coc-cursors-current-range ).
It wouldn't be hard to code the solution in lua.

Additional context

Lua functions I am using:

function _G.coc_cursors_skip()
	return [[<Plug>(coc-cursors-word)*<Plug>(coc-cursors-word):nohlsearch<CR>]]
end
function _G.coc_cursors_select_current()
	if vim.b['coc_cursors_activated'] == 1 then
		return [[*<Plug>(coc-cursors-word):nohlsearch<CR>]]
	else
		return [[<Plug>(coc-cursors-word)]]
	end
end

Feel free to add it to https://github.com/neoclide/coc.nvim/wiki/Multiple-cursors-support if you want.