Add completion contributor for Bukkit event handlers (#2613 ) * Add completion contributor for Bukkit event handlers * cleanup code * add license header * Save template as liveTemplate * add license headers * don't stop processing completions & update year in license header --------- Co-authored-by: Strokkur24 <[email protected]> ⁠ noah 7 files  632a96f529d7 02 May 26 16:16