Improve Speed of Graph Template Editing Through Bulk Updates

[TheWitness]

Feature Request

Is your feature request related to a problem? Please describe

In a cursory review of the Template modification logic, I ran across a while look doing individual updates from the same row. Seems inefficient. Let's do bulk updates instead.

Describe the solution you'd like

Do a simple update for each Graph Item. Since there are so many items, this should speed up Template propagation changes in general.

Describe alternatives you've considered

Stored procedures for less turns.

Additional context

Stored Procedures, something to think about.

[TheWitness]

After reviewing, this will not provide a big speedup as it only impacts the template, but should be done as a single update just to make it faster.