ProjectExplorer: Add RunControl::set{Kit,Target}

For cases where no genuine RunConfiguration is available.

Use it in the debugger for the cases triggered from the menu.

Change-Id: I5671f4f5db2547c4a7a70bd34292bb6ccc8e6bf4
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/remotelinux/remotelinuxdebugsupport.cpp

@@ -34,7 +34,7 @@ namespace RemoteLinux {
 namespace Internal {
 
 LinuxDeviceDebugSupport::LinuxDeviceDebugSupport(RunControl *runControl)
-    : DebuggerRunTool(runControl, nullptr, false)
+    : DebuggerRunTool(runControl, DebuggerRunTool::DoNotAllowTerminal)
 {
     setId("LinuxDeviceDebugSupport");