Add evolution auxiliaries (#400)

Author: svarzee

src/main/java/com/pokegoapi/api/pokemon/EvolutionForm.java

@@ -0,0 +1,29 @@
+package com.pokegoapi.api.pokemon;
+
+import java.util.List;
+
+import POGOProtos.Enums.PokemonIdOuterClass;
+
+public class EvolutionForm {
+	private static PokemonIdOuterClass.PokemonId pokemonId;
+
+	EvolutionForm(PokemonIdOuterClass.PokemonId pokemonId) {
+		this.pokemonId = pokemonId;
+	}
+
+	public boolean isFullyEvolved() {
+		return EvolutionInfo.isFullyEvolved(pokemonId);
+	}
+
+	public List<EvolutionForm> getEvolutionForms() {
+		return EvolutionInfo.getEvolutionForms(pokemonId);
+	}
+
+	public int getEvolutionStage() {
+		return EvolutionInfo.getEvolutionStage(pokemonId);
+	}
+
+	public static PokemonIdOuterClass.PokemonId getPokemonId() {
+		return pokemonId;
+	}
+}