seminaries/qtrvsim/bubble-sort: provided template for bubble sort implementation.

The directory contain seminaries/qtrvsim/buble-sort/bubble-sort-template.S
file. The whole directory or only only this file should appear in the
directory work/bubble-sort/bubble-sort.S and changes should be sent
to your repository. We are working on automation process for the testing.
Expect more instructions.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>