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/examples/popen.tcl

@@ -0,0 +1,20 @@
+# Internally, open "|..." calls out to popen from tclcompat.tcl
+#
+# This code is compatible with Tcl
+
+# Write to a pipe
+set f [open |[list cat | sed -e "s/line/This is line/" >temp.out] w]
+puts "Creating temp.out with pids: [pid $f]"
+foreach n {1 2 3 4 5} {
+	puts $f "line $n"
+}
+close $f
+
+# Read from a pipe
+set f [open "|cat temp.out"]
+puts "Reading temp.out with pids: [pid $f]"
+while {[gets $f buf] >= 0} {
+	puts $buf
+}
+close $f
+file delete temp.out