* When we figure out which event a marker region should jump to if you
select the parent, we want to pick the last valid event ID that isn't
just a label. However previously this was being done by iterating over
the children and picking the last one and assuming there would be a
node of that index - which isn't true in the case where some drawcalls
were entirely omitted. It would either index out of bounds, or index
incorrectly.
* Client code can enumerate the IDs of counters that are supported -
some of these will be general, some will be IHV specific. It can also
request descriptions of the counters to determine the type of data or
units. This can be used to 'discover' counters that aren't hard
coded into renderdoc. I'll want to at least reserve IHV ranges so that
counter IDs are globally unique, and ideally IHV counters will also be
predeclared where possible.
* Also the refactor removes some ugly rdctype::array use outside of the
replay layer and replaces it just with std::vector, which is a nice
bonus.
baldurk