Refactoring of functions to reduce the number of arguments

[rakurame96]

This function has 8 arguments. This can be reduced to 4 or 5 arguments if identical set of arguments are contained within a structure. Filepath: /workspaces/rencfs/src/encryptedfs.rs

/// Helpful when we want to copy just some portions of the file.
    pub async fn copy_file_range(
        &self,
        src_ino: u64,
        src_offset: u64,
        dest_ino: u64,
        dest_offset: u64,
        size: usize,
        src_fh: u64,
        dest_fh: u64,
    ) -> FsResult<usize>

struct FileHandle {
       src_fh: u64,
       dest_fh: u64,
}

struct InodeMetaData {
        src_ino: u64,
        src_offset: u64,
        dest_ino: u64,
        dest_offset: u64,
}

Based on above optimisation, same function will have reduced set of arguments yet achieves the same functionality

/// Helpful when we want to copy just some portions of the file.
    pub async fn copy_file_range(
        &self,
        ino: InodeMetaData,
        size: usize,
        fh: FileHandle,
    ) -> FsResult<usize>

https://crates.io/crates/bon