Add Example HttpBin Node

[brianinoa]

Description:

Add an example node using Declarative Rest API Node Design.

Showcase:

• UI Functionality

  • Conditional Rendering
  • Sending Data as different types [query, body]

• Credentials Examples

  • Bearer Token

[CLAassistant]

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1 out of 2 committers have signed the CLA.

:white_check_mark: brianinoa
:x: krynble
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