created a filter class

+import * as ARCS from '../build/arcs.js';
+
+let Filter;
+
+/**
+ * @class Filter
+ * @classdesc Creates a filter in between a signal and a slot
+ *
+ * The idea is to create a dynamic component with a slot list and signals
+ * so that data is adapted, on the fly, by the component.
+ * In a way, it is similar to filters in pipe|filter architectures.
+ *
+ * @param config {FilterConfig} configuration object to initialize filter
+ */
+Filter = ARCS.Component.create(
+    /** @lends Filter.prototype */
+    function(config) {
+        let self = this;
+
+        let _config = config || {};
+
+        if (_config.signals) {
+            _config.signals.forEach(e => {
+                if (self.signals.indexOf(e) < 0) self.signals.push(e);
+            });
+        }
+        
+
+        if (_config.slots) {
+            _config.slots.forEach(e => {
+                if (!e.slot || !e.func) return;
+                let slotName = e.slot;
+                let slotFunc = new Function('self',`return ${e.func}`)(self);
+                self.slots.push(slotName);
+                self[slotName] = slotFunc;
+            });
+        }
+},
+    [],
+    []
+);