Add trailing '/' to MediaColumns.RELATIVE_PATH

Bumped MediaProvider version code to 1023.
On upgrade, if version code is less than 1023 then a '/' is appended to
relative_path column values for all rows in files table.

Test: atest MediaProviderTest
Test: manual - made sure that after update, photos that were taken
before the update had the trailing '/'
Bug: 132631113
Change-Id: I356d12271716b4825f614a64bf5815ab1a1006ec
3 files changed