Boot2Qt: Add a "manual test"

Only a description how to set up a local Linux machine to allow
creating Boot2Qt related runconfig and build steps.

Change-Id: I1b8f45e9aaa743076a51ac8f81405586c0365086
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

tests/manual/boot2qt/README.md

@@ -0,0 +1,72 @@
+
+
+### Testing Boot2Qt setup without hardware ###
+
+It is possible to test Boot2Qt without hardware on a plain Linux host system.
+
+Note: You need an ssh-accessible "root" user on the machine, open X access,
+and must be willing to use it. This is not meant for production environments!
+
+
+# Prepare your machine
+
+ssh-copy-id -i ~/.ssh/id_??????.pub root@localhost
+xhost +
+
+# Get appcontroller source and build
+
+git clone ssh://codereview.qt-project.org/qt-apps/boot2qt-appcontroller
+
+cd boot2qt-appcontroller
+/path/to/qt-base/bin/qt-cmake ...
+ninja ...
+
+# Copy binary to "proper" location
+
+sudo ln -s `pwd`/appcontroller /usr/bin/appcontroller
+
+
+# Set up "Boot to Qt" Device in Creator
+
+Ensure the "Boot to Qt" plugin is enabled
+
+Edit -> Preferences -> Devices, "Add...", "Boot to Qt Device", "Start Wizard"
+Device Name: LocalHostForBoot2Qt
+Device Address: 127.0.0.1
+
+Press "Apply"
+
+# Create a suitable Kit
+
+Clone your standard kit for normal local work
+Change the "Run Device" to LocalHostForBoot2Qt
+Keep the "Build Device" at "Desktop Device"
+
+Press "Apply"
+
+The kit will have a warning the "Device type is not supported by Qt version" - that's ok.
+
+# Create a test project
+
+File -> New Project -> Qt Quick Application
+
+# Tweak project settings
+
+Deployment method: "Deploy to Boot to Qt Target"
+
+Run Command line arguments: Add  "-display :0"
+Run Environment: Add LD_LIBRARY_PATH=/path/to/qt-base/lib
+
+"Executable on Device" may be red at that stage, it shold get black after a successful build
+
+
+# Build
+
+Ctrl-B
+
+
+# Test
+
+At that stage, the program should be runnable, debuggable (C++, QML, and combined QML/C++),
+and Qml-Profilable
+