TASK: Adapt styleci settings and travis for AFX

The AFX tests will be executed with the "Neos tests" configuration
as that captures all tests within the "Neos" folder, no additional
connfiguration needed.

.styleci.yml

@@ -8,6 +8,8 @@ finder:
     - "Neos.Diff/Tests"
     - "Neos.Fusion/Classes"
     - "Neos.Fusion/Tests"
+    - "Neos.Fusion.Afx/Classes"
+    - "Neos.Fusion.Afx/Tests"
     - "Neos.Media.Browser/Classes"
     - "Neos.Media.Browser/Tests"
     - "Neos.Media/Classes"
@@ -18,7 +20,7 @@ finder:
     - "Neos.NodeTypes/Tests"
     - "Neos.SiteKickstarter/Classes"
     - "Neos.SiteKickstarter/Tests"
-    
+
 enabled:
   - no_unused_imports
   - short_array_syntax