YAMLParser now supports YAML lists not parsed by the parser itself.

This means that list of type
```yaml
list:
  - test: "Hello"
  - test: "Hi"
```
will be parsed as a list of (ConfigurationSection)[src/main/java/it/fulminazzo/yamlparser/configuration/ConfigurationSection].
Totally reworked classes separation to respect packaging conventions.
Reworked FileConfiguration#addParsers method.
Reworked `FileConfiguration#newYaml` method to support older versions of SnakeYAML.
Renamed `it.fulminazzo.yamlparser.configurations` package to `it.fulminazzo.yamlparser.configuration`.
Made FileConfiguration and ConfigurationSection final.
Added support for escaped dot characters: now it will be able to use `\.` in paths to allow for dotted strings to be parsed.
Added support for BigDecimal notation when getting Number types.
Added `unquote` method to remove quoted strings when saving or loading.
Added `getOptional` method in IConfiguration.
Added `getOptionalList` method in IConfiguration.
Added _gui_ formatting in `FileUtils#formatStringToYaml(String)`.
Added `IConfiguration#setList` to save lists in dash form.
Now IConfiguration extends Serializable.
Removed nullity annotations from **YAMLParser** methods.
Fixed dotted test error.
Fixed `IConfiguration#getKeys` not returning an ordered set.
Fixed NullPointerException in `IConfiguration#throwException` method.
Fixed MapYAMLParser not supporting primitive types.
Fixed `FileConfiguration#getParser` method to look first for equal object classes.
Fixed `CollectionYAMLParser` not returning null values in non-specified indexes.
Fixed `IConfiguration#getList(String, Class)` not checking correct paths.
Fixed `IConfiguration#contains` not checking for valid section.
Fixed `EnumYAMLParser` not making name uppercase.
Fixed `CollectionYAMLParser` not returning null in case of invalid object.
Fixed YAMLException being thrown recursively.
Updated README.md.
Updated FulmiCollection.

src/main/java/it/fulminazzo/yamlparser/configuration/IConfiguration.java

@@ -1067,15 +1067,19 @@ default String getCurrentPath() {
      * @param e      the e
      */
     default void throwException(String path, Object object, Throwable e) {
-        if (e.getCause() != null && (e instanceof RuntimeException || e instanceof InvocationTargetException))
-            e = e.getCause();
         path = path == null ? "null" : path;
         String currentPath = getCurrentPath();
         if (currentPath != null && !currentPath.isEmpty()) path = currentPath + "." + path;
-        String message = e.getMessage();
-        if (e instanceof YAMLException) message = e.getMessage();
-        else message = e.getClass().getSimpleName() + " " + message;
-        throw new YAMLException(path, object, message);
+
+        if (e instanceof YAMLException) {
+            YAMLException yamlException = (YAMLException) e;
+            yamlException.setPath(path);
+            throw yamlException;
+        }
+
+        if (e.getCause() != null && (e instanceof RuntimeException || e instanceof InvocationTargetException))
+            e = e.getCause();
+        throw new YAMLException(path, object, e.getClass().getSimpleName() + " " + e.getMessage());
     }
 
     /**

src/main/java/it/fulminazzo/yamlparser/exceptions/YAMLException.java

@@ -2,6 +2,7 @@
 
 import it.fulminazzo.yamlparser.logging.LogMessage;
 import lombok.Getter;
+import lombok.Setter;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -10,8 +11,9 @@
  * while working with IConfiguration instances.
  */
 @Getter
+@Setter
 public class YAMLException extends RuntimeException {
-    private final @NotNull String path;
+    private @NotNull String path;
     private final @NotNull String name;
     private final @Nullable Object object;