Device component: Added support for ACLs and Candidate datastore in OpenConfigDriver

See merge request teraflow-h2020/controller!102

- Corrected default values in unitary test config template
- Minor code styling

- solved minor bug with default openconfig operations.

- OpenConfigDriver: code cleanup and added default values

- Updated default OpenConfig unitary test template config
- Added minor code improvements in OpenConfig Driver

- OpenConfigDriver migrate from netconf_client to ncclient library
- Clean integration of Candidate datastore
- OpenConfigDriver code cleanup

- Implemented support for ACLs
- Added suport for Candidate datastore

Initial functional versions of Interdomain and Slice components

See merge request teraflow-h2020/controller!100

fix: broken P4 tests

See merge request teraflow-h2020/controller!99

Signed-off-by: Georgios Katsikas <katsikas.gp@gmail.com>

Extended WebUI, OpenConfig Driver support and functional test for OFC'22

See merge request teraflow-h2020/controller!97

Enable config of route-tables and monitoring in packet devices

See merge request teraflow-h2020/controller!98

Clarifications and corrections applied to release v1

See merge request teraflow-h2020/controller!96

Post-release arrangements:

See merge request teraflow-h2020/controller!95

Release v1.0.0

See merge request teraflow-h2020/controller!94

Cleanup and addition of license headers to files

See merge request teraflow-h2020/controller!93

Resolved some Device OpenConfigDriver issues

See merge request teraflow-h2020/controller!92

Feat/add ztp add bind and serializer

See merge request teraflow-h2020/controller!82

ci(automation): fix deployment job

See merge request teraflow-h2020/controller!91

fix(policy): change policy component service to ClusterIP

See merge request teraflow-h2020/controller!90

Fix multiple issues related to integration of components and cleanup

See merge request teraflow-h2020/controller!89