* Add a bunch of the OO keywords and some of the more unusual block
delimiter types
* Highlight macromodule like module is.
* Highlight new as seen in constructor declarations like
`class blah; function new(...); ... endfunction endclass`
* Make endfunction a @keyword.function. This matches how lua does it.
* Make tasks @keyword.function: tasks in SystemVerilog are more or less just
impure functions
* Highlight casex/casez like case is currently highlighted (previously
these were not highlighted at all)
* Highlight unique, unique0, priority for constructs like
`unique case (...) ... endcase` and `priority if (...) ...`