mMaxLines was not being set correctly; dont draw hidden chips on first render pass

mMaxLines was always zero
Setting the value correctly avoids an extra layout which makes it faster
to render chips
Use an "invisible" recipient chip for anything > than max chips we can show before
showing the more chip; this avoids a lot of unnecessary drawing and decoding of 9 patches
in the first pass; once these are resolved (or the user makes them visible), they will be correctly
drawn as visible chips
Part of b/7492291 First 2 contacts takes too long to resolve into chips when there are many contacts

Change-Id: I37817381f93efb968940031d8a8b77fb62c8919a