Interfaces with core_alloc_* instead of buflib directly.
Provide UT_core_allocator_init() with
a fixed buffer size for predictable results.
Change-Id: I26a7b3101f7782063547940bded52d8202638394
Taken from kugel's out-of-tree version:
https://github.com/kugel-/buflib
Needs some API adaptions. More test will follow.
Note: The expected output needs an update since
the in-tree version of buflib does buffer alignment
and also progressed a bit. Still the tests are a very good start.
Added Rockbox copyright header during import were needed.
Change-Id: Ib39ec4301285f1dd53059b7bed0c0d6646297dc5
