M30Release: SODALITE ontologies updated for M24-M30

Semantic models updated for supporting policies, triggers, targets e.t.c
SODALITE Metamodel also updated for supporting additional descriptive information.

M24 Release

M24Release

Update README.md

Modules and tosca policies added

SODALITE Metamodel enriched for supporting modules in KB.
Also, tosca tier 0 has been enriched for suppurting TOSCA policies.

All use cases are working

All use cases are working (snow, clinical, vehicle iot).

First version of Semantic Models

It contains the SODALITE core ontologies, and some examples of resource models, and aadms.