debuggers: import openocd-0.7.0

Initial check-in of openocd-0.7.0 as it can be downloaded from
http://sourceforge.net/projects/openocd/files/openocd/0.7.0/

Any modifications will follow.

Change-Id: I6949beaefd589e046395ea0cb80f4e1ab1654d55

debuggers/openocd/jimtcl/rlprompt.tcl

@@ -0,0 +1,45 @@
+# Readline-based interactive shell for Jim
+# Copyright(C) 2005 Salvatore Sanfilippo <antirez@invece.org>
+#
+# In order to automatically have readline-editing features
+# put this in your $HOME/.jimrc
+#
+# if {$jim_interactive} {
+#    if {[catch {package require rlprompt}] == 0} {
+#       rlprompt.shell
+#    }
+# }
+package require readline
+
+proc rlprompt.shell {} {
+    puts "Readline shell loaded"
+    puts "Welcome to Jim [info version]!"
+    set prompt ". "
+    set buf ""
+    while 1 {
+        set line [readline.readline $prompt]
+
+        if {[string length $line] == 0} {
+            continue
+        }
+        if {$buf eq ""} {
+            set buf $line
+        } else {
+            append buf \n $line
+        }
+        if {![info complete $buf]} {
+            set prompt "> "
+            continue
+        }
+        readline.addhistory $buf
+
+        catch {
+            uplevel #0 $buf
+        } error
+        if {$error ne ""} {
+            puts $error
+        }
+        set buf ""
+        set prompt ". "
+    }
+}