Added package Echon (#1557)

Co-authored-by: Timo 'eXodiquas' Netzer <exodiquas@gmail.com>

packages.json

@@ -18671,6 +18671,20 @@
     "license": "MIT",
     "web": "https://github.com/enthus1ast/nimMime"
   },
+  {
+    "name": "Echon",
+    "url": "https://github.com/eXodiquas/Echon",
+    "method": "git",
+    "tags": [
+      "generative",
+      "l-system",
+      "fractal",
+      "art"
+    ],
+    "description": "A small package to create lindenmayer-systems or l-systems.",
+    "license": "MIT",
+    "web": "https://github.com/eXodiquas/Echon"
+  },
   {
     "name": "nimrcon",
     "url": "https://github.com/mcilya/nimrcon",