scripts:Update Validation IDs for spec 1.0.50

scripts:Update Validation IDs for spec 1.0.50

I'm attempting to migrate to the new VUIDs that are integrated into the
spec this week so this will hopefully be the last update of this type.

Migration plan is:
-Update existing VUID database to include new, integrated, string VUIDs
-Update VUID db to include core/ext data from json
-Update links/messages in VUIDs
-Move all old VUIDs in the source to use new VUIDs

Command to perform this current update was:
python spec.py -update -remap 3076-2049,2

And I manually restored 911 & 912 which are in the core spec but not in
the extension spec.