Implementation of R modules:
new file:   tests/mock/testPipe_example/handles/Plot.handles
Implementation of R modules (continued):

modified:   src/r/TestingTools.R
modified:   src/r/jterator/api/io.R
- api similar to the already existing ones in Matlab and Python

modified:   src/python/jterator/api/io.py
- minor editing to make it more comparable to code in other languages