Bug 24289: Make sure sample_holidays will load after sample_libraries

Bug 24289: Make sure sample_holidays will load after sample_libraries

They are inserted depending on their alpha order, and sample_holidays
will fail because of missing branchcode.
This patch suggests a simple fix: rename sample_holidays to
sample_libraries_holidays, to make sure it will be loaded after
sample_libraries

Test plan:
Start a fresh installation and select all sample data

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Joy Nelson <joy@bywatersolutions.com>
(cherry picked from commit d950985d17db7c142e6c99edb41a7dc9c2d906ef)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>