Add lever and jump pad components with activation logic

addons/rmsmartshape/documentation/Install.md

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+# SmartShape2D - Install
+
+## Asset Library
+
+- After installing the plugin, you may encounter an error, this is normal.
+- You need to restart Godot before using the plugin.
+
+## Manual Install
+
+- Clone the repository at https://github.com/SirRamEsq/SmartShape2D.
+- Move the "addons/rmsmartshape" folder to your project's "addons" folder.
+- Open your project in Godot to have the addon install.
+- After installing the plugin, you may encounter an error, this is normal.
+- Restart Godot.
+
+## Activate Plugin
+
+- After Installing the plugin, activate the plugin by navigating to `Project -> Project Settings... -> Plugins`
+
+![Activate Plugin](./imgs/PluginActivate.png)