Ts-salobj

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Changes:

* `CscCommander`: remove the ability to mark trailing comments with `.
* `CscCommander`: add the ability to quote parameters, allowing them to contain spaces.

Requirements:

* ts_ddsconfig
* ts_idl 2
* ts_xml 6.2
* IDL files for Test and Script generated by ts_sal 5
* SALPY_Test generated by ts_sal 5

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Changes:

* `BaseScript` and `ConfigurableCsc`: ignore a ``metadata`` dict entry, if present, in config files.

Requirements:

* ts_ddsconfig
* ts_idl 2
* ts_xml 6.2
* IDL files for Test and Script generated by ts_sal 5
* SALPY_Test generated by ts_sal 5

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Changes:

* `CscCommander`: handle bool command arguments correctly.
Allow any of 0, 1, f, t, false, true (case blind).
* Rewrite the configuration documentation to reduce duplication with the documentation for ts_ddsconfig.

Requirements:

* ts_ddsconfig
* ts_idl 2
* ts_xml 6.2
* IDL files for Test and Script generated by ts_sal 5
* SALPY_Test generated by ts_sal 5

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Changes:

* Improve handling of errors in the constructor in `SalInfo`, `Controller`, `BaseCsc` and `BaseScript`:
Make sure the close methods will not access missing attributes.
* `BaseCsc`: check the simulation mode before calling the parent class's constructor, to avoid needlessly constructing a `Domain`.
* `BaseCsc`: remove internal variable ``_requested_summary_state``.

Requirements:

* ts_ddsconfig
* ts_idl 2
* ts_xml 6.2
* IDL files for Test and Script generated by ts_sal 5
* SALPY_Test generated by ts_sal 5

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Changes:

* Format the code using black 20.8b1.

Requirements:

* ts_ddsconfig
* ts_idl 2
* ts_xml 6.2
* IDL files for Test and Script generated by ts_sal 5
* SALPY_Test generated by ts_sal 5

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Changes:

* Use ``import unittest.mock`` instead of ``import unittest`` when using mocks.

Requirements:

* ts_ddsconfig
* ts_idl 2
* ts_xml 6.2
* IDL files for Test and Script generated by ts_sal 5
* SALPY_Test generated by ts_sal 5