#2 dynamic filter instantiation

[Alexander Kunkel]

Needed is a design to enhance the program with filters
dynamically not statically.

I do not prefer the started implementation
FunctionManager.initDynamically() only loading class
files from file system.
Instead of this i suggest to add filters delivered in a
JAR file appended to the classpath.

2 possible find strategies
1. To find all filters they have to be placed in a
specific package and have to be subtypes of Filter.

2. The config file contains a list of existing filters
and their initial attributes

Alexander