added filesystem functions and requests module

[tokyob0t]

New filesystem functions

• read_file_async: Reads a file asynchronously and returns its contents
• read_file_sync: Reads a file synchronously
• write_file_async: Writes data to a file asynchronously
• file_exists: Checks if a file exists at a given path
• dir_exists: Checks if a directory exists at a given path

http requests module
added a requests module for making asynchronous HTTP requests with support for GET, POST, and other methods. it includes options for query parameters, headers, and request bodies, along with handling response data like status codes and response text :)

[javacafe01]

@Nooo37 Do you have time to review this?