Added the CONTRIBUTORS file to the package.

Makefile

@@ -1,3 +1,15 @@
+# ===----------------------------------------------------------------------===
+# 
+# This source file is part of the AmiiboAPI open source project
+# 
+# Copyright (c) 2024 Röck+Cöde VoF. and the AmiiboAPI project authors
+# Licensed under the EUPL 1.2 or later.
+# 
+# See LICENSE for license information
+# See CONTRIBUTORS for the list of AmiiboAPI project authors
+# 
+# ===----------------------------------------------------------------------===
+
 # ENVIRONMENT VARIABLES
 
 environment ?= .env
@@ -39,4 +51,4 @@ package-update: ## Updates the SPM package dependencies
 help: ## Prints the written documentation for all the defined tasks
 	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST)
 
-.DEFAULT_GOAL := help
+.DEFAULT_GOAL := help