Pepper for the WiN corpus

Pepper (https://corpus-tools.org/pepper/) is a highly extensible platform for conversion and manipulation of linguistic data between an unbound set of formats. This specific version is used to convert the Wiedererzählen im Norden corpus (https://www.uni-goettingen.de/de/607371.html).

Compared to the original Pepper version, it includes a snapshot version of the AlignmentModule (https://github.com/korpling/pepperModules-AlignmentModule) and a version of the EXMARaLDAModules plugin with some corpus specific fixes.