Read-in workflows from macros

[haesleinhuepf]

Suggested by @pr4deepr

'''
Also, the same way you can generate a macro based on the workflows, is it possible to do the opposite? As in, use a macro to generate the CLIJx-assistant workflow which I can tweak, maybe add or delete components and regenerate a macro/script?
'''

See also:
https://github.com/clij/assistant/issues/14

This should be doable by extending the parser:
https://github.com/clij/assistant/blob/master/src/main/java/net/haesleinhuepf/clijx/assistant/services/UsageAnalyser.java

[haesleinhuepf]

This has been done in clij/assistant@5df5b6e

See documentation on how to use it:
https://clij.github.io/assistant/save_and_load

Thanks @pr4deepr for this suggestion. You were in fact the second user asking for this and here it comes :-)