mcp.types.Tool is not following python's naming convention

Describe the bug
The input schema property is not following the snake case convention. Currently the property is defined as "inputSchema" instead of "input_schema". Ideally we can follow the convention as it is widely adopted. Additionally, not following the convention requires more lines of code on the client when passing the available tools to the API request.

python-sdk/src/mcp/types.py

Line 660 in aaf32b5

inputSchema: dict[str, Any]

Expected behavior
inputSchema get renamed to input_schema

Screenshots
N/A