v0.2.0

SignalTables v0.2.0

Version, based on ModiaResult.jl.
Changes with respect to ModiaResult.jl:

Underlying data format made much simpler, more general and more useful:

• Dictionary of multi-dimensional arrays as function of one or more independent variables
  with potentially missing values.
• Also parameters can be stored in the dictionary and are supported, e.g., for plotting.
• Variables and parameters are dictionaries that store the actual values (e.g. arrays), and additional attributes.
• Values are stored without units and the units are provided via the additional string attribute :unit. A unit can be
  either hold for all elements of an array, or an array of units can be provided defining the units for all variable elements.
• A new function to flatten and convert a signal array for use in plots or traditional tables.
• Since signals are arrays, all the Julia array operations can be directly used,
  e.g. for post-processing of simulation results.
• write/save on JSON and JDL (HDF5) files.

Furthermore

• Documentation considerably improved and made more user-oriented.
• The Abstract Interfaces defined more clearly.
• Several annoying bugs of ModiaResult.jl are no longer present.