Fixed a bug on the experiment history related to a job creation mechanism that failed when previous data was not found

Implementing #555. The priority for selecting the output folder of the statistics will follow: LOCAL_ROOT_FOLDER/expid/stats -> LOCAL_ROOT_FOLDER/expid/tmp -> LOCAL_ROOT_FOLDER/DEFAULT_OUTPUT_FOLDER/stats/ . This order will be bypassed if the user executing autosubmit is eadmin. Regular users cannot create any folder inside another users' experiment folder, even when having write permissions on that folder.

Added sleep timers in the dbfix procedure to prevent the function from executing steps when the previous command has not yet been completed

DEFAULT_OUTPUT_DIR changed to DEFAULT_STATS_OUTPUT_DIR in basic configuration. Stats files that can't be written in the experiment directory are now saved into the DEFAULT_OUTPUT_DIR path. Related to #555

Added pre-requisites and an example

The dbfix procedure won't delete the faulty database but change its name as a backup if the process fails

Added a new basic configuration: DEFAULT_OUTPUT_DIR where the statistics output file will be saved if the user doesn't have enough permissions to create the file in the experiment's location. Added a small fix for the csv generation of statistics