[iOS] a few iOS examples do not include extra src files

[artificiel]

• advancedEventsExamples misses some files
• assimp examples misses gui dir
• iosOrientationExample misses files
• moviePlayerExample misses files
• iosNativeARCExamle misses many files and does not have app.h app.mm
• iPhoneGuiExample misses the gui dir
• iosExternalDisplayExample misses the UI dir

—> otherwise they're nice examples to have (i.e. worth it to figure out the fix)

to be clear about what is meant, ex:

[ofTheo]

same issue as #8296

apparently will be fixed by:
openframeworks/projectGenerator#595

cc @dimitre

[dimitre]

Yes. I've put the recursive PG fix together with this PR.
Seems like the same issue
to confirm (if needed) a re-generated project via PG should work ok

[artificiel]

ok! i will wait 1 day or 2 for the different iOS issues to settle down a bit (maybe there are interactions etc) and re-test from the nightly dist (I assume the latest PG is automatically updated in the nightlies?).

[dimitre]

if anybody else can proofread and review my PR we can merge and manually generate a nighly

[dimitre]

closed by openframeworks/projectGenerator#595