[11u] RFR (S): 8264786: [macos] All Swing/AWT apps cause Allow Notifications prompt to appear when app is launched

[Vladimir Kempik]

Please review this backport to fix the issue with notification center pop-ups on jdk10+

the fix didn’t apply cleanly because one more line of code had to be moved to NSApplicationAWT.m to CTrayIcon.m:
[[NSNotificationCenter defaultCenter] postNotificationName:JNFRunLoopDidStartNotification object:self];


The bug - https://bugs.openjdk.java.net/browse/JDK-8264786
The webrev - http://cr.openjdk.java.net/~vkempik/8264786/webrev.01/
The original commit - https://git.openjdk.java.net/jdk/commit/020236cb9825bf4fa91a495a179623e3fcdc0149

Will wait for positive tests run before doing jdk11u-fix-request in the bug.

Regards, Vladimir