feat: Wind shader

Assets/Shaders/Wind.mat

@@ -0,0 +1,45 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!21 &2100000
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+  m_Name: Wind
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+    m_Floats:
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+    - _WindAmplitude: 0.5
+    - _WindOffset: 0
+    - _WindSpeed: 1
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