First commit for FSL export tool

Export cluster, peaks and threshold information into NI-DM by parsing
the HTML.
Get peaks and cluster from txt file instead of html
Separate file to handle prov generation
wip: Contrast map
fix: can now deal with single cluster
extract degrees of freedom and contrast name
update ids to deal with more than one contrast
Comment and function renaming
Update serialisations
Add residual mean squares map
Separate inference activity for each contrast
Generate graph with or without attributes
Delete: Move example FSL export to test.
Update: spaces in `contrast name`
Update model fitting
Update attributes types
Update references to namespaces
Empty _init_ for modules
Deleted run test function
Add z statistical map