Update load commands to update existing data instead of flushing data

[JackMorganNZ]

Currently the loadtopics and loadresources commands require the database to delete (flush) all entries and then recreate them. It should instead update existing entries, create new ones, and delete old ones. This is required when users want to create a permanent connection to a resource, topic, etc.

[JackMorganNZ]

Moving to future milestone as not required for release.

[JackMorganNZ]

@hayleyavw Do we wish to close this issue? As we are not planning on enabling user accounts for CS Unplugged.

[hayleycodes]

Might as well stay open for external contributors, it's not on our priority list but it should be done at some point shouldn't it? Our current solution of deleting it all then creating everything all over again is not particularly elegant.

[JackMorganNZ]

At the current point of this project, and with the planned features, it never needs to be implemented. Therefore I believe it should be closed, especially as it's a large amount of work for someone to do that wouldn't be utilised.