Move Word Stemmer to main package

Author: andrewdalpino

CHANGELOG.md

@@ -3,6 +3,7 @@
     - Moved Flysystem Persister from ML package
     - Moved Lambda Function to Extras package
     - Flatten the Other namespace
+    - Move Word Stemmer tokenizer to main package
 
 - 0.4.0-beta
     - Added RBXE serializer

composer.json

@@ -25,8 +25,7 @@
         "php": ">=7.4",
         "league/flysystem": "^2.0",
         "rubix/ml": "^1.0",
-        "rubix/tensor": "^2.2",
-        "wamania/php-stemmer": "^2.0"
+        "rubix/tensor": "^2.2"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "2.18.*",