Support uploading entries

[0x111]

Uploading an entry should be possible with a command but also with the option to listen on the "onsave" event of a file that is currently opened and has a valid path to tour workspace.

Two flows here:
Uploading with a command
* Run upload command
* The extension identifies sys_id and table from path and sys_id.txt file
* Calls the sn-edit upload --table tablename --sys_id sys_id command which will upload the entry
* Display a notification about success/failure

One flow in this case

• Upload on save
  • The extension identifies sys_id and table from path and sys_id.txt file
  • Calls the sn-edit upload --table tablename --sys_id sys_id command which will upload the entry
  • Display a notification about success/failure

[0x111]

Bind upload command to onDidSaveTextDocument: Event, check if current file is in our workspace and then upload if it is, if it is not display an error message.

[0x111]

Uploading using a command can be easily replicated but it will not be supported for now.
We support uploading an entry on the file save event. This should be enough and if there is demand we will add this later.