feat(toggletip): add option for alternate icon

[sangeethababu9223]

Related Ticket(s)

Closes #11636

Description

Allow specifying an alternate icon to the Toggletip web component

Changelog

New

• Added a new attribute option for enabling custom icons - hasCustomIcon
• Added functionality to check if hasCustomIcon attribute is added to the Toggletip component, if so show the custom icon instead of the default information icon.
• Added an extra knob in storybook for custom icons.

[ibmdotcom-bot]

Deploy preview created for package Carbon Web Components:
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Built with commit: 756fc1fe79d85db8d8190879b3965b25cc4c8e38

[ibmdotcom-bot]

Deploy preview created for package Web Components:
https://ibmdotcom-webcomponents.s3.us-east.cloud-object-storage.appdomain.cloud/deploy-previews/11694/index.html

Built with commit: 756fc1fe79d85db8d8190879b3965b25cc4c8e38

[ibmdotcom-bot]

Deploy preview created for package Web Components (React wrapper):
https://ibmdotcom-web-components-react.s3-web.us-east.cloud-object-storage.appdomain.cloud/deploy-previews/11694/index.html

Built with commit: 756fc1fe79d85db8d8190879b3965b25cc4c8e38

[ibmdotcom-bot]

Deploy preview created for package Web Components HTML Test Application:
https://ibmdotcom-web-components-html-test-upstream.s3.us-east.cloud-object-storage.appdomain.cloud/deploy-previews/11694/index.html

Built with commit: 756fc1fe79d85db8d8190879b3965b25cc4c8e38

[Valentin-Sorin-Nicolae]

Old fix, not needed.