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.
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.
Now IConfiguration extends Serializable.
Fixed dotted test error.
Fixed `IConfiguration#getKeys` not returning an ordered set.
Updated README.md.
Updated FulmiCollection.

build.gradle

@@ -6,7 +6,7 @@ plugins {
 }
 
 group = 'it.fulminazzo'
-version = '1.5.7'
+version = '1.5.8'
 
 repositories {
     mavenCentral()
@@ -19,7 +19,7 @@ dependencies {
     compileOnly 'org.jetbrains:annotations:24.1.0'
 
     implementation 'org.yaml:snakeyaml:2.2'
-    api 'it.fulminazzo:FulmiCollection:1.3.2'
+    api 'it.fulminazzo:FulmiCollection:1.3.7'
 
     testImplementation platform('org.junit:junit-bom:5.9.1')
     testImplementation 'org.junit.jupiter:junit-jupiter'

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

@@ -62,7 +62,7 @@ public interface IConfiguration extends Serializable {
                             .map(c -> entry.getKey() + "." + c).collect(Collectors.toList()));
                 }
             }
-        return new HashSet<>(keys);
+        return new LinkedHashSet<>(keys);
     }
 
     /**