Enhancement/runtime options provider#51

[jdevillard]

This first PR use the update of the Elsa.Api.Client to provide refresh of input options that use OptionsProvider using an API.

There is work to do for #67 in server side and Contract definition to get more informations about the input like DependsOn etc... and fill the Context property with valuable data.

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Summary:
This Pull Request proposes several changes to improve the readability and maintainability of the code. The changes include: updating the version of the 'Elsa.Api.Client' package, adding the RemoteBackendApiClientProvider dependency, refresh the options for 'inputDescriptor', updating bullet points for each package to include a trailing slash, and creating a list of ActivityInputDisplayModels with modified DisplayInputEditorContext.

List of Changes:

• Added a private method RefreshOptions to populate options for an ActivityDescriptor's InputDescriptor
• Added a parameter to the GetAsync call in the RefreshOptions method
• Modified ToWrappedInput method to accept a new ObjectConverterOptions parameter
• Updated the version of the 'Elsa.Api.Client' package to '3.0.0-preview.827'
• Added RemoteBackendApiClientProvider dependency
• Refreshed the options of the 'inputDescriptor'
• Updated bullet points for each package to include a trailing slash
• Built and assigned a list of 'ActivityInputDisplayModels' with modified 'DisplayInputEditorContext'

Refactoring Target:

• Separate the logic in the RefreshOptions method into its own unit of execution
• Consider using an existing ObjectConverterOptions type rather than creating a new one for the ToWrappedInput method

[jdevillard]

do not merge , need to add some code (I've only test the Simple Array Options not the SelectListItem)

[jdevillard]

Close as done with #97 and #98