[rtems-littlevgl PATCH v2 1/2] Add README

[Vijay Kumar Banerjee]

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+RTEMS LittlevGL
+===============
+
+Welcome to RTEMS LittlevGL (lvgl). This package builds the lvgl library using
+waf with the required settings for running it with rtems. The lvgl drivers are
+adapted to the BSD framebuffer and hence requires the latest rtems-libbsd build.
+
+About LittlevGL
+---------------
+
+LittlevGL is a lightweight graphics library for embedded GUI applications. It
+can be configured using the `lv_conf.h` and the `lv_drv_conf.h` files that are
+in the top of the rtems-littlevgl directory.
+
+The documentation is available at:
+https://docs.littlevgl.com/en/html/index.html
+
+Building and installing rtems-littlevgl
+---------------------------------------
+
+```
+git clone git://git.rtems.org/packages/rtems-littlevgl.git
+git submodule update
+./waf configure --prefix=/path/to/rtems/5
+./waf build install
+```
+
+Writing embedded GUI app using rtems-littlevgl
+----------------------------------------------
+
+The rtems-examples repository has a sample lvgl hello world application that can +be followed for reference on how to write and build an application with lvgl.
+The sample app can be found here:
+https://git.rtems.org/rtems-examples/tree/lvgl/hello/test.c
+
+Where to discuss questions and ideas?
+-------------------------------------
+
+The preferred way of carrying out any discussions or questions is to reach out
+to the users mailing list users at rtems.org or the devel mailing list
+devel at rtems.org for more detailed discussions.
+
+In any discussions related to rtems-littlevgl, the maintainers can be CC'd by
+their respective id's given below:
+
+Christian Mauderer (christian.mauderer at embedded-brains.de)
+Vijay Kumar Banerjee (vijay at rtems.org)
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