#6799 [Story/TplGen] Define actifsource file-id at own position

Actifsource code generator for any programming language
Release: Actifsource V11.2.0

Sometimes it is useful to place the actifsource file-id in a well-defined location in the file.

To use the feature, the property 'omitFieldId' must be set to true in buildconfig.
After that the actifsource file-id is not generated at the end of the file, but via the position 'Build.fileId@BuiltIn' defined in the template.

6799 1 FileId 1