adds SortScan via field name (not just field index)
adding support for executeAndWait() with transaction id (optional)
support for between predicate from json interface (needs 2 values)
improves tpcc tables

* tables names in upper case (specification)
* column types according to specification
* fixes for wrong foreign keys
adds tpcc execution test for all five transactions and queries as json files
multiple tpcc tests for transactions now possible
some improvements on json queries
Revert "improves tpcc tables"

This reverts commit 9257397dbdea8dc53b1fa802a5c6609c1475644b.
improves tpcc tables
corrects table names and column order for insertion
removed debug output
parameterized file loading now with python formating

 * %(<name>)<width>[d/i/s/f] supported