docs: Wrote documentation

Signed-off-by: Joe MacMahon <joe.macmahon@cern.ch>
all: Added a configuration dict.

Signed-off-by: Joe MacMahon <joe.macmahon@cern.ch>
docs: Added config param description to docstrings

Signed-off-by: Joe MacMahon <joe.macmahon@cern.ch>
all: Modified licence from GPL to LGPL

Signed-off-by: Joe MacMahon <joe.macmahon@cern.ch>