Merge branch 'release/0.9.5' into develop

new version of static knowledge, and new mwthods to access and modify the internal dataset
new vision for the reasoning functionalities, at the query registration actions the users can specify the inference type
bug fixes
ATTENTION! Many methods of the current version are not compatible with the previuous ones
minor bug fixes
Merge branch 'release/0.9.5'

minor bug fixes