Add *args to action_wrapper

[MichaelPesce]

Fixes/Resolves:

Adds optional positional arguments to the action_wrapper(), which wraps the build, solve, and export functions of FlowsheetInterfaces

Summary/Motivation:

To run a parameter sweep using parameter_sweep.ParameterSweep, you must provide a flowsheet's solve function. On the UI, we store this solve function as an action_wrapper('solve'). When running a parameter sweep using the ParameterSweep class, we then have 2 options:

1. Provide the action wrapped solve function OR
2. Dynamically locate the underlying Flowsheet solve function

We had been using option 2, but this relied on the assumption that a flowsheet's solve function was named either solve or optimize. To remove this assumption, we can use option 1.

In order for option 1 to work, we must add optional positional arguments, see below screenshot:

Changes proposed in this PR:

• Add *args to action_wrapper()
• Update UI accordingly to use action wrapped solve function

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[bknueven]

Surely this can't hurt.