Finished implementation of Value script type.
Implemented beanshell and beanshell file script type.
Implemented javascript and javascript file script type.
ScriptTypes shouldn't know whether they are called to map a query or a response. Therefor the values have to be passed to them explicitly.
Implemented regular expression ScriptType.
Added conversion direction hint to ScriptTypes, because "Table" needs it.
 Implemented Table ScriptType.