New THISTYPE for Description

I would like to add `THISTYPE` similar to `CARDNAME` for Descriptions

it mostly matters for Cost Parts that does check for "CARDNAME" should check for "THISTYPE" too

Variations:
* "this land"
* "this creature"
* "this artifact"
* "this enchantment"
* "this permanent" (maybe difficult? Could check for Non-Intrinsic?)
* "this token"

uppercase ones
* "this Aura"
* "this Equipment"
* "this Case"
* "this Spacecraft"
* "this Planet"
* "this Attraction"

I think that it shouldn't use changed Type, so it could just use the Original Type of CardState
That's why I want to add `getThisType` to CardState