Make all parts hidden if TAC LS is not Enabled in a save game.

[JPLRepo]

This could be done. but is a bit of work.
Needs to handle custom filters (TACLS and CCK).
Parts would need to be stored in a dictionary to store their original category and TechRequired fields.
Then set these to category -1 or suchlike and TechRequired - hidden or suchlike if TACLS is not Enabled and changed them back from dictionary values if TACLS is then Enabled.

[macmade]

This should be an additional option.
Disabling TLS while keeping parts can be a lifesaver when the mod is buggy with a new KSP version.