AX: web process should load correct bundle path for MACCATALYST

AX: web process should load correct bundle path for MACCATALYST
https://bugs.webkit.org/show_bug.cgi?id=200122

Patch by Eric Liang <ericliang@apple.com> on 2019-07-26
Reviewed by Brent Fulgham.

Added the path to accessibility bundle for Mac Catalyst.
Added sandbox profile to read accessibility settings.

* WebProcess/cocoa/WebProcessCocoa.mm:
(WebKit::registerWithAccessibility):
* WebProcess/com.apple.WebProcess.sb.in:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@247864 268f45cc-cd09-0410-ab3c-d52691b4dbfc