split into different charting tools

[hustcc]

Split into different charting tools (similar to mcp-server-chart) to improve accuracy and visual quality.

1. generate_area_chart: Generate an area chart, used to display the trend of data under a continuous independent variable, allowing observation of overall data trends.
2. generate_bar_chart: Generate a bar chart, used to compare values across different categories, suitable for horizontal comparisons.
3. generate_boxplot_chart: Generate a boxplot, used to display the distribution of data, including the median, quartiles, and outliers.
4. generate_column_chart: Generate a column chart, used to compare values across different categories, suitable for vertical comparisons.
5. generate_dual_axes_chart: Generate a dual-axes chart, used to display the relationship between two variables with different units or ranges.
6. generate_fishbone_diagram: Generate a fishbone diagram, also known as an Ishikawa diagram, used to identify and display the root causes of a problem.
7. generate_flow_diagram: Generate a flowchart, used to display the steps and sequence of a process.
8. generate_funnel_chart: Generate a funnel chart, used to display data loss at different stages.
9. generate_histogram_chart: Generate a histogram, used to display the distribution of data by dividing it into intervals and counting the number of data points in each interval.
10. generate_line_chart: Generate a line chart, used to display the trend of data over time or another continuous variable.
11. generate_liquid_chart: Generate a liquid chart, used to display the proportion of data, visually representing percentages in the form of water-filled spheres.
12. generate_mind_map: Generate a mind-map, used to display thought processes and hierarchical information.
13. generate_network_graph: Generate a network graph, used to display relationships and connections between nodes.
14. generate_organization_chart: Generate an organizational chart, used to display the structure of an organization and personnel relationships.
15. generate_pie_chart: Generate a pie chart, used to display the proportion of data, dividing it into parts represented by sectors showing the percentage of each part.
16. generate_radar_chart: Generate a radar chart, used to display multi-dimensional data comprehensively, showing multiple dimensions in a radar-like format.
17. generate_sankey_chart: Generate a sankey chart, used to display data flow and volume, representing the movement of data between different nodes in a Sankey-style format.
18. generate_scatter_chart: Generate a scatter plot, used to display the relationship between two variables, showing data points as scattered dots on a coordinate system.
19. generate_treemap_chart: Generate a treemap, used to display hierarchical data, showing data in rectangular forms where the size of rectangles represents the value of the data.
20. generate_venn_chart: Generate a venn diagram, used to display relationships between sets, including intersections, unions, and differences.
21. generate_violin_chart: Generate a violin plot, used to display the distribution of data, combining features of boxplots and density plots to provide a more detailed view of the data distribution.
22. generate_word_cloud_chart: Generate a word-cloud, used to display the frequency of words in textual data, with font sizes indicating the frequency of each word.