Add EFFECT_TYPE_TARGET

[kevinlul]

Fluorohydride/ygopro-scripts#1194

Fluorohydride/ygopro-core#224

[NaimSantos]

Looking at the cards changed in those commits, most of them are handled by our PersistentProcedure. Does doing these changes imply removing that procedure from the cards? I'm not really used to the rulings involved here that led to the creation of that procedure or the addition of EFFECT_TYPE_TARGET to the core. I am adding 1 example of what it will look like when the change is done here https://github.com/kevinlul/edopro-script/commit/7edd30d603f351b450f3a96b93f5f067847ec901 and will wait for confirmation to decide if i apply it or not to the other cards.

[AlphaKretin]

If the current form of the Persistent Proc is no longer applicable, I think the proc should be updated instead of obsoleted. The change in Shattered Axe looks like something that will be pretty similar between most cards