rationalize functional tests sims starters

rationalize functional tests sims starters

in test_utils.py:
- centralize sims ports and config/log files in one associative array
- based on this, use one method start_sim(sim) for every sims
- remove obsolete dedicated-per-sim methods
- centralize messages printed at sims and tpce start-up

in tests files
- replace harcoded port values by the corresponding array value
- replace the term "honeynode" by "sim" which is more generic
- remove obsolete sims timers in 2.2.1 tests

Signed-off-by: guillaume.lambert <guillaume.lambert@orange.com>
Change-Id: I99c29be7cfcccbce28748cf79ddcf40d148641ef