At this time I don't think there's a specific place provided to drop in this code OOTB. Depending on what you are wanting to get out of it you may be able to build out something to meet your needs in the Web Service Scripts / Integration. More details on this are in the help files.
If this doesn't meet your needs you could log a feature request explaining in detail what functionality you need and development and product management would take it into consideration for a future release.
Can you give us an example of the data you want to collect? There may be a simple way in the product to accomplish it.
Hey Jonathan, just looking for insight into what areas of the site folks are going to and finding useful, how many visitors we are seeing, peak times, referring URL's, basic web analystics.
While the GA standard approach probably wouldn't work I'm pretty sure I could get some value from the tag manager with little effort.