Improve performance when adding / removing tags on large data sets

[comatory]

Currently the UpdateValue plugin deals with updating the value. The problem is when you remove / add a tag somewhere in the beginning of the input, it treats all the other tags as changed. So the operation takes some time.

This is noticeable for inputs with 50+ tags in them, you can use Performance page in playground app to see this in action. Preferrably I should do a research on some efficient algorithm on how to deal with this. We could perhaps sacrifice accuracy for performance but I'm not sure if this is the right step.