Tango-simlib

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- Supporting more tango data types.
- DevUChar
- DevShort
- DevUShort
- DevLong64
- DevULong64
- DevState
- DevEncoded
- Updating documentation. Addresses issue 79_.

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- Adding support to register and run a TANGO device using a file as a database.
- Initialising the model quantity values with the default values specified in the simulator data description files.
- Parsing simulator data description files in a pre-determined precendence order.
- Removing unmaintained python-devicetest dependency.
- Added a fandango json parser
- This parser is used to process the TANGO device data file generated by the fandango_ library.
- Making use of the PyTango v9.2.2 feature to create dynamic commands.

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- Force all unicode attributes in XMI files to byte strings.

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- Updates to the SimDD
- Added a new type of behaviour in the side-effect actions suite for long-running
commands.
- Handle vector data type from pogo
- Populate tango-db with device properties

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- Package release documentation
- Updated console script names
- tango-simlib-tango-launcher -> tango-simlib-launcher
- tango-simlib-tango-simulator-generator -> tango-simlib-generator

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- DISH config files included in examples of device simulators
- JSON Schema for SimDD configuration file validation