iTerm(special): Handle asynchronous operations

[zFernand0]

Is your feature request related to a problem? Please describe.

The initial implementation of iTerms always waits for the response from z/OS.

Describe the solution you'd like

Ideally, users are able to run a command and specify whether or not they want to wait for the output 😋
And if they decide not to wait, users should be able to specify if they want to get delayed responses OR just forget about the output of the executed command. 😋

One option could be to make users prefix the command with special command modifiers:

• Prefix with :async for delayed responses
• Prefix with :forget if the user is not interested in the output of the command

Describe alternatives you've considered

3270 😅

Additional context

Related:

• Epic: Integrated Terminals (iTerm) - Early feedback #3203

[github-actions]

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