i2b2 scripts - add Drop table at start of script or rename ctsa_clic_metric

[kirchoffkg]

To be consistent with other scripts and not drive people nuts that they already have the table from last year:

in the i2b2 scripts please add

drop table ctsa_clic_metric ;
commit ;

or rename table ctsa_clic_metric throughout script to ctsa_clic_metric_22? This would allow institutions to keep the table year after year if needed. Either option works.