Add custom nodes, Civitai loras (LFS), and vast.ai setup script

Includes 30 custom nodes committed directly, 7 Civitai-exclusive
loras stored via Git LFS, and a setup script that installs all
dependencies and downloads HuggingFace-hosted models on vast.ai.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

custom_nodes/ComfyUI-Easy-Use/py/libs/easing.py

@@ -0,0 +1,27 @@
+@staticmethod
+def easyIn(t: float)-> float:
+    return t*t
+@staticmethod
+def easyOut(t: float)-> float:
+    return -(t * (t - 2))
+@staticmethod
+def easyInOut(t: float)-> float:
+    if t < 0.5:
+        return 2*t*t
+    else:
+        return (-2*t*t) + (4*t) - 1
+
+class EasingBase:
+
+    def easing(self, t: float, function='linear') -> float:
+        if function == 'easyIn':
+            return easyIn(t)
+        elif function == 'easyOut':
+            return easyOut(t)
+        elif function == 'easyInOut':
+            return easyInOut(t)
+        else:
+            return t
+
+    def ease(self, start, end, t) -> float:
+        return end * t + start * (1 - t)