Create a table to track io_file progress (#200)

Author: brianquinlan

pkgs/io_file/README.md

@@ -4,6 +4,45 @@ system API using FFI.
 See
 [package:io_file - a pure dart file system API](https://docs.google.com/document/d/17dPegdklLKQz4fjrRDHaN0ld7FlmK0prncZQUTx68nk/edit?usp=sharing)
 
+## Progress
+
+### FileSystem
+
+| Feature               | Android | Linux | iOS   | macOS | Windows |
+| :---                  |  :---:  | :---: | :---: | :---: | :----:  |    
+|  canonicalize path    |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  copy file            |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  create directory     |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  create hard link     |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  create symbolic link |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  create tmp directory |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  create tmp file      |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  delete directory     |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  delete file          |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  delete tree          |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  enum dir contents    |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  exists               |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  get metadata (stat)  |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  open                 |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  read file (bytes)    |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  read file (lines)    |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  read file (string)   |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  rename               |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  set permissions      |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  write file (bytes)   |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  write file (string)  |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+
+### File
+
+| Feature               | Android | Linux | iOS   | macOS | Windows |
+| :---                  |  :---:  | :---: | :---: | :---: | :----:  |    
+|  get file descriptor  |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  get file length      |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  get file metadata    |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  get file position    |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  read                 |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+|  write                |   [ ]   |  [ ]  |  [ ]  |  [ ]  |   [ ]   |
+
 ## Status: Experimental
 
 **NOTE**: This package is currently experimental and published under the