Add command \url{} and spaces before/after weblinks

[tobirolinew]

Perhaps it would be practical to have an option which adds one extra space before and after a weblink in a specific BibItem. This option could help that one can jump to the given webpage from a TXT editor, which adds the non-separated braces to the link.
Furthermore, it would be also worth having a button using which one can surround a link with the \url{} command. These options should work for all weblinks, not only those specified within the "url" field.

Thank you in advance for considering these options.