Added .item:serializer module to automatically load and save item o…

…bjects.

Added parsers:
- [EnchantmentParser](item/serializer/src/main/java/it/angrybear/serializers/EnchantmentParser.java);
- [ItemParser](item/serializer/src/main/java/it/angrybear/serializers/ItemParser.java);
- [ShapeParser](item/serializer/src/main/java/it/angrybear/serializers/ShapeParser.java);
- [ShapedRecipeParser](item/serializer/src/main/java/it/angrybear/serializers/ShapedRecipeParser.java);
- [ShapelessRecipeParser](item/serializer/src/main/java/it/angrybear/serializers/ShapelessRecipeParser.java);
- [FurnaceRecipeParser](item/serializer/src/main/java/it/angrybear/serializers/FurnaceRecipeParser.java).
Added [YAGLParser](item/serializer/src/main/java/it/angrybear/serializers/YAGLParser.java) to automatically load parsers.
Moved everything to package `it.angrybear.yagl`.
Reworked `Item#copy()` method: it will try to get a default empty constructor from the current class. If it fails, it defaults to `ItemImpl`.
Fixed `Item#copy(Class)` with automatic resolution of interfaces: passing `Item` or `BukkitItem` will convert them into `ItemImpl` and `BukkitItemImpl`.
Fixed `Item#copy(Class)` not checking if current item has field of receiving class.
Fixed various bugs in **ShapedRecipe**.
Fixed recipes not copying items in their most default state (Item).
Updated FulmiCollection to version 1.4.1.

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 shadow = "8.1.1"
 delombok = "8.4"
 
-fulmicollection = "1.4"
+fulmicollection = "1.4.1"
 yamlparser = "1.5.9"
 
 spigot = "1.14-R0.1-SNAPSHOT"