Run cbd-tests

1. install packages:

# pip install avocado-framework avocado-framework-plugin-varianter-yaml-to-mux avocado-framework-plugin-result-html
# apt install bpfcc-tools

2. Edit local_conf and an example as below:

CBD_TESTS_XFSTESTS_DIR="/data/xfstests"

XFSTESTS_SCRATCH_MNT="/mnt/scratch"
XFSTESTS_TEST_MNT="/mnt/test"

FIOTEST_OUTFILE="output.cvs"

CBD_TESTS_POST_TEST_CMDS=""

3. run test:
# bash test_all.sh