Add the ability to display the uri of an artifact instead of the one linked by a provided index.

[jnix-abk]

When displaying the artifact location on a result item, if there is ALSO an index value, I would like to still show the uri of the result item while navigating to the uri of the artifact linked by the index value. This will allow me to produce SARIF files with no content and then link to the content elsewhere when needed.

The change proposed is:

sarif-vscode-extension/src/shared/index.ts

Line 199 in a1740e7

: undefined;

From:
: undefined;
To:
: runArtLoc?.uri ?? undefined;