Add drawing and visualization applications with Marimo framework

- Implement dibujar.py for drawing functionality with base64 and PIL image rendering.
- Create dibujar_retropaint.py for retro painting features using the Paint widget.
- Develop draw_data.py to visualize data with Scatter and Bar widgets, including lazy installation of dependencies.
- Add layout configuration for graphical representations in layouts/Graficos_plotly.grid.json.
- Enhance shell interaction with mejora_shell_mowidget.py, allowing local library imports and script execution.
- Introduce primera_prueba_shell_mowidget.py for testing shell commands and user input handling.
- Create prueba_de_embeddings.py for embedding visualizations using Sentence Transformers and dimensionality reduction techniques.
- Implement pygwalker_visualizaciones.py for interactive data exploration and visualization using Pygwalker.
- Add a sample bash script for user input and ping functionality in scripts/mi_script.sh.

layouts/Graficos_plotly.grid.json

@@ -0,0 +1,66 @@
+{
+  "type": "grid",
+  "data": {
+    "columns": 24,
+    "rowHeight": 20,
+    "maxWidth": 1400,
+    "bordered": true,
+    "cells": [
+      {
+        "position": null
+      },
+      {
+        "position": null
+      },
+      {
+        "position": null
+      },
+      {
+        "position": [
+          0,
+          0,
+          24,
+          9
+        ]
+      },
+      {
+        "position": null
+      },
+      {
+        "position": [
+          0,
+          9,
+          12,
+          28
+        ]
+      },
+      {
+        "position": [
+          12,
+          9,
+          12,
+          28
+        ]
+      },
+      {
+        "position": null
+      },
+      {
+        "position": [
+          0,
+          37,
+          12,
+          28
+        ]
+      },
+      {
+        "position": [
+          12,
+          37,
+          12,
+          28
+        ]
+      }
+    ]
+  }
+}