The UI part and minor things are added 1. `APP4RTA.java` UI is added. 2. `SingleTCs.amxmi` model is added for simple UI demonstration 3. a path to `SingleTCs.amxmi` is added to `SharedConsts.java` 4. automatically generated file directory `/xtend-gen/` is added to `.gitignore` Change-Id: Icaee5ab1ae42ec2d61a2085cf178edd25f0c1b72 Signed-off-by: Junhyung Ki <kijoonh91@gmail.com>