Renaming dim reflections to purifications

[Shibva]

The spells, Terra Reflection and Everflame Reflection are incorrectly documented in the book; the spells require an entity to be poped for it to push a bool regarding the respective check made by each; therefore:

- The description for both needs to be changed slightly - "Returns whether or not the entity given is in the Overworld/Nether"

• "Reflection" should be changed to Purification

Suggestion: "Nullscape Purification", the equivalence of Terra and Everflame but for the end

• if other dimensions exist it can at least be checked if the caster using it is not in the three coregame dims

[Shibva]

EDIT: looks like most of the things in the book were corrected, all that needed to be done was changing how the spell name was

fixed in https://github.com/SamsTheNerd/HexGloop/pull/76/commits/2b78689c4add8177b6c0452ada751beae44d283d