prod/test: created getCharacterHealthPoints and test_getCharacterHealthPoints

src/c/character.c

@@ -7,4 +7,8 @@ Character character;
 
 void setCharacterHealthPoints (Character *character, int newHealthPoints){
     character->healthPoints = newHealthPoints;
+}
+
+int getCharacterHealthPoints (Character *character) {
+    return character->healthPoints;
 }