add support for binary/octet stream in Bind method

[Umang01-hash]

Pull Request Template

Description:

• Closes issue #1143

• Example Usage:

func HelloHandler(c *gofr.Context) (interface{}, error) {
    var data []byte
    if err := c.Bind(&data); err != nil {
        return nil, fmt.Errorf("failed to bind binary data: %w", err)
    }

    // Process the binary data
    fmt.Printf("Received binary data: %v\n", data)
    return string(data), nil
}

Checklist:

• [x] I have formatted my code using goimport and golangci-lint.
• [x] All new code is covered by unit tests.
• [x] This PR does not decrease the overall code coverage.
• [x] I have reviewed the code comments and documentation for clarity.

Thank you for your contribution!