Support TRACE and MONITOR bits

[xpqz]

(originaly reported by nic as mantis 0018408)

The RIDE protocol does now pass TRACE and MONITOR bits for edit/trace windows, whereas it only used to pass STOP bits though.

Editor deletes ⎕TRACE and ⎕MONITOR points when function was fixed with 2 ⎕FIX 'file://...' This happens only when using the RIDE protocol, and not when using the Windows IDE or the Linux TTY version.

Repro:

   (⊂' res←foo arg' '⍝ this is foo' 'res←arg' 'res←''foo'' arg') ⎕NPUT '/tmp/foo.aplf' 1
      2 ⎕FIX 'file:///tmp/foo.aplf'
      {(1 2 ⎕STOP ⍵)(2 3 ⎕TRACE ⍵) (1 3 ⎕MONITOR ⍵)}'foo'
 1 2 2 3 1 3
      {( ⎕STOP ⍵)( ⎕TRACE ⍵) (⊣/⎕MONITOR ⍵)}'foo'
 1 2 2 3 1 3
      ⎕ED'foo'
      ⍝ change anything (retaining the same number of lines) and save changes
      {( ⎕STOP ⍵)( ⎕TRACE ⍵) (⊣/⎕MONITOR ⍵)}'foo'
      ⍝ Windows IDE and Linux TTY correctly reports: 1 2 2 3 1 3
      ⍝ Ride INCORRECTLY reports: 1 2