Release 0.1.5

Library:

• New create empty observable function (issue 386) (#387)
• Deprecate petab.sbml.globalize_parameters (#381)
• Fix computing log10 likelihood (#380)
• Documentation update and typehints for visualization (#372)
• Ordered result of petab.get_output_parameters
• Fix missing argument to parameters.create_parameter_df

Documentation:

• Add overview of supported PEtab feature in toolboxes
• Add contribution guide
• Fix optional values in documentation (#378)