Add Server Operator Rules to Legal in options tab (#1911) * Add Server Operator Rules to Legal in options tab Added modding guidelines, community server and hosting guidelines, as well as the server operator guidelines to the legal tab in options, which was previously not made aware before. It's important to note, the server operator guidelines are not linked anywhere on Facepunch's legal section of the Garry's Mod website. * Add gmod_modding, gmod_servers, gmod_sor commands These commands will open the appropriate legal content. * Get rid of redundant "Server Guidelines" button Co-authored-by: Rubat <3299036+robotboy655@users.noreply.github.com>