receptors handling.
More tests.

Introduced Receptors class to handle receptors info and
simplify tests with mock devices.
Added unit tests with mock devices.

Updated HISTORY and release files for csp commons and mid packages.

Add/Remove receptors command classes now inherit from Assign/ReleaseResources
command classes.
Updated mid cbf DB configuration file to reduce VCC membership polling
(to reduce the latency in unassignedReceptorIDs attribute update). Fixed also
a bug in one MID CBF device name.
Updated the tests for MidCspSubarray.

in execution.
Modified __configure_scan thread to catch the CbfSubarray CONFIGURING
obsState.
Update csp-lmc-common release number and HISTORY.
Updated Mid CspSubarray tests and configuration file.

Skip tests written for the previous version of subarray state machine.

packages. Updated HISTORY files.

Small change to CspSubarray to have correct mocking of the
subscribing.

New TANGO DB configuration for MID.CBF and MidCspSubarray.

Implemented ADR-4 and ADR-10 decisions.

file.
Added tests for Scan command.

Updated the MidCspSubarrayBase interface.
Added the path to load the filename configuration in the acceptance tests.
Add the "id" key in the json configuration files.

Moved some logging messages from info to debug.

to check for command failure.
Added some debug printing.
Validation of json confiuration ID done in subarray common class.

- configurationID: store the scan configuration unique id (string).
- isCmdInProgress: report the execution state of a long-running command.

invalid json configuration.

Enabled logging for pytest in setup.cfg.