Add functions to open park window to awards/rating

Also update replace some address that have constants/functions
Add news_item_open_subject()
Add function to open park window to guests tab
Change NEWS_ITEM_SCENERY to NEWS_ITEM_RESEARCH
Merge branch 'open_news_item' of https://github.com/ZedThree/OpenRCT2 into ZedThree-open_news_item
Merge branch 'ZedThree-open_news_item'
Merge branch 'master' of https://github.com/IntelOrca/OpenRCT2