Split phpstan.neon files for addon checks

.phpstan-addons.neon

@@ -0,0 +1,52 @@
+# SPDX-FileCopyrightText: 2010 - 2024 the Friendica project
+#
+# SPDX-License-Identifier: CC0-1.0
+
+parameters:
+    level: 2
+
+    paths:
+        - addon/
+
+    excludePaths:
+        analyse:
+            - addon/*/lang/*
+            - addon/*/vendor/*
+            - addon/convert/UnitConvertor.php
+            - addon/pumpio/oauth/*
+
+    scanDirectories:
+        - mod
+        - src
+        - static
+        - vendor
+        - view
+
+    dynamicConstantNames:
+        - DB_UPDATE_VERSION
+
+    ignoreErrors:
+
+        -
+            # Ignore missing SMTP class in PHPMailer 5.2.21
+            # see https://github.com/PHPMailer/PHPMailer/blob/v5.2.21/class.smtp.php
+            message: '(^.+ an unknown class SMTP\.$)'
+            path: addon/mailstream/phpmailer
+
+        -
+            # Ignore missing SMTP class in PHPMailer 5.2.21
+            # see https://github.com/PHPMailer/PHPMailer/blob/v5.2.21/class.smtp.php
+            message: '(^Property .+ has unknown class SMTP as its type\.$)'
+            path: addon/mailstream/phpmailer
+
+        -
+            # Ignore missing SMTP class in PHPMailer 5.2.21
+            # see https://github.com/PHPMailer/PHPMailer/blob/v5.2.21/class.smtp.php
+            message: '(^Method .+ has invalid return type SMTP\.$)'
+            path: addon/mailstream/phpmailer
+
+        -
+            # Ignore missing SMTP class in PHPMailer 5.2.21
+            # see https://github.com/PHPMailer/PHPMailer/blob/v5.2.21/class.smtp.php
+            message: '(^Instantiated class SMTP not found\.$)'
+            path: addon/mailstream/phpmailer