[TIMOB-18261] Add missing newlines to end of iOS header files

JIRA Ticket: https://jira.appcelerator.org/browse/TIMOB-18261

The following files are missing newlines. Apple triggers a warning during compilation for this, and this commit fixes these files.

**To test:**
1. Apply the commit
2. Follow the steps to "find" the files in the original ticket using find_files.sh in the iPhone directory. It should not find anything.