Enable RIch FieldDescription in Touch UI Coral Dialog

[#1]

Request for Feature Enhancement (RFE) Summary:
Use-case:	Allow images for field description e.g. https://aemlab.blogspot.com/2021/05/aem-touch-ui-component-dialog-fielddescription-image.html
Current/Experienced Behavior:	Rich Text gets encoded and does not render HTML
Improved/Expected Behavior:	Rich Text should be supported for dialog field description property
Environment Details (AEM version/service pack, any other specifics if applicable):	AEM 6.5 and AEMaaCS
Customer-name/Organization name:	N/A
Screenshot (if applicable):	More details at https://aemlab.blogspot.com/2021/05/aem-touch-ui-component-dialog-fielddescription-image.html
Code package (if applicable):

[#2]

@arunpatidar Team will pick this one for review very soon. Due to some internal re-arrangement, this is derailed a bit. I'll keep you posted with this.

[#3]

Hi @arunpatidar 

Thanks for proposing the idea. This request has been raised to the product team via the internal request SITES-1319. The product team will triage this request to verify feasibility based on the prioritization model. This post will be updated according to the Jira request status.