Tuple conversions mop up.

Adding shortcut paths and ngen tags to setup vsixes

Fix version of Interactive Window CoreXT package

These tags were missing from the telemetry vsix and the setup.next vsix.

Remove left over signing tools

Insert DSRN to its own ExternalAPI directory.

Use a proper API key

Remove unused parameters

Fix a couple small errors in the microbuild scripts

MicroBuild validation

Now that the majority of our MicroBuild steps are in the open we can verify them at commit time.  This will guard us against more late night scrambles to fix the official build.