Add Credential Issuer tutorial

[mDuo13]

Adds sample code, in Python, and a code walkthrough explaining how to build a service that issues Credentials (XLS-70) on the XRP Ledger.

[mDuo13]

Sharing review feedback from Ross at Ripple:

I was able to take a look at the content, it is quite technical (which i assume is intentional) and the following are some overall comments:

• It would make sense to a technical audience who has reviewed / familiarised with the credentials (either XRPL specific or even just what they are, what they are for, etc)
• Overall it made sense to me and wasn't hard to follow (though i know the subject + XRPL pretty well)
• No missing steps that i could see, though it would be good to cover verification in some way.... I know it is sort of covered in "List Credentials" however it would be good to have a step for third-party verification as it kind of closes the loop on what the point of this is
• I didn't really following the documents parameter in the Request Credential service at all ... i don't think it goes on chain so i don't understand what does happen to it + my view on the VC functionality is it is only in the credential issuing value-chain after the issuer determines someone should receive the credential.... i don't see publishing requirements to get the credential as part of what XRPL provides etc.

I'll follow up with changes based on this feedback.

[socket-security]

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher
npm/@esbuild/[email protected]	None	0	11.1 MB	evanw
npm/@esbuild/[email protected]	None	0	9.57 MB	evanw
npm/@esbuild/[email protected]	None	0	11.1 MB	evanw
npm/@esbuild/[email protected]	None	0	9.51 MB	evanw
npm/@esbuild/[email protected]	None	0	9.92 MB	evanw
npm/@esbuild/[email protected]	None	0	8.65 MB	evanw
npm/@esbuild/[email protected]	None	0	9.35 MB	evanw
npm/@esbuild/[email protected]	None	0	8.85 MB	evanw
npm/@esbuild/[email protected]	None	0	8.65 MB	evanw
npm/@esbuild/[email protected]	None	0	8.9 MB	evanw
npm/@esbuild/[email protected]	None	0	9.11 MB	evanw
npm/@esbuild/[email protected]	None	0	10.2 MB	evanw
npm/@esbuild/[email protected]	None	0	8.91 MB	evanw
npm/@esbuild/[email protected]	None	0	8.85 MB	evanw
npm/@esbuild/[email protected]	None	0	9.77 MB	evanw
npm/@esbuild/[email protected]	None	0	9.35 MB	evanw
npm/@esbuild/[email protected]	None	0	9.33 MB	evanw
npm/@esbuild/[email protected]	None	0	9.37 MB	evanw
npm/@esbuild/[email protected]	None	0	9.33 MB	evanw
npm/@esbuild/[email protected]	None	0	8.76 MB	evanw
npm/@esbuild/[email protected]	None	0	9.2 MB	evanw
npm/@esbuild/[email protected]	None	0	9.55 MB	evanw
npm/@jridgewell/[email protected]	None	0	40 kB	jridgewell
npm/@rollup/[email protected]	None	0	19 kB	shellscape
npm/@rollup/[email protected]	None	0	37.7 kB	shellscape
npm/@types/[email protected]	None	0	25.7 kB	types

🚮 Removed packages: npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected], npm/[email protected]

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