- Corrected new definition of endpoint descriptors in tests and components

- Improved definition of endpoint descriptors

- Added field name in Device-related methods
- Added field name in Link-related methods

- Added field name in method create_context
- Enahnced filtering in Interdomain method get_device_to_domain_map()
- Migrated old methods compute_interdomain_path() and compute_traversed_domains() to new compute_interdomain_sub_slices()

- Improved InterDomain queries
- Cleaned up code

- Removed update context/topology as it is not needed

- Added get_connection_by_id and get_connection_by_uuid methods
- Updated old get_service method to get_service_by_id and get_service_by_uuid
- Updated get_service method to use new SelectService context method and filter options
- Updated old get_slice method to get_slice_by_id and get_slice_by_uuid
- Updated get_slice method to use new SelectSlice context method and filter options
- Updated get_device method to use new SelectDevice context method and filter options

- Added dummy unload mode

- Added availability percentage to SLA Availability constraint

- Removed availability percentage from SLA Availability constraint (new feature)

- Added availability percentage to SLA Availability constraint

- Removed availability percentage from SLA Availability constraint (new feature)

- Added device type "TeraFlowSDN controller"
- Added driver type for IETF L2VPN
- Updated corresponding components

- Corrected Constraint definitions

- corrected parsing of slice descriptors

- implemented missing methods

- implemented missing methods

- added support for dictionary and file-based loading of descriptors
- added getter methods
- added validation and unload methods
- integrated helper methods
- updated documentation

- Added safety control

- Added method to get Context
- Added method to get Link

- Implemented parallel descriptor loading, especially for device onboarding

- Added/Updated headers
- Added script to update copyright headers

- removed useless comment

- Added method to request device/endpoint names from a list of endpoint identifiers

- updated method to update config rules and support action updates

- added get_device helper method

- reduced log level of InterDomain-related methods to DEBUG

- added context "admin" as default for slices

- updated definition of constant DEFAULT_CONTEXT_UUID to DEFAULT_CONTEXT_NAME
- updated definition of constant DEFAULT_TOPOLOGY_UUID to DEFAULT_TOPOLOGY_NAME
- updated definition of constant INTERDOMAIN_TOPOLOGY_UUID to INTERDOMAIN_TOPOLOGY_NAME

- corrected slice and service methods

- updated policy rule object factory
- updated rpc method wrapper decorator's duration buckets

- updated coveragerc template file
- extended and improved rpc wrapper set of declarable exceptions
- updated default context and topology definition constants

- removed incorrect instruction

- improved object-factry slice-related methods

- added field name in context
- added field name in topology
- added field name in device
- added field name in link
- added field name in service
- added field name in slice