Duplicate ignore-2.14.txt history in ignore-2.15.txt history. (ansibl…

…e-collections#1046)

Initial sanity ignore file for Ansible 2.15 (branching happened)

SUMMARY
stable-2.14 was branched yesterday, with devel becoming 2.15. As such we need to create the initial ignore file based upon the existing 2.14 file.
ISSUE TYPE

Feature Pull Request

COMPONENT NAME
tests/sanity/ignore-2.15.txt
ADDITIONAL INFORMATION

Reviewed-by: Bikouo Aubin <None>
Reviewed-by: Alina Buzachis <None>