Base class for serializing models into the MOJO format.
The function of a MOJO writer is simply to write the model into a Zip archive consisting of several
text/binary files. This base class handles serialization of some parameters that are common to all `Model`s, but
anything specific to a particular Model should be implemented in that Model's corresponding ModelMojoWriter subclass.
When implementing a subclass, you have to override the single functions
this function you can use any of the following:
AbstractMojoWriter.writekv(String, Object) to serialize any "simple" values (those that can be represented as a
AbstractMojoWriter.writeblob(String, byte) to add arbitrary blobs of data to the archive.
add text files to the archive.
After subclassing this class, you should also override the
method in your model's class to
return an instance of your new child class.