Greek keyboard layout variant added

[h2][list] [*]Greek GR [/list] [/h2] [h3]Greek [el-GR][/h3] [h3]Greek 220 [el-GR][/h3] [h3]Greek 220L [el-GR][/h3] [h3]Greek 319 [el-GR][/h3] [h3]Greek 319L [el-GR][/h3] [h3]Greek ELL [el-GR][/h3] [h3]Greek ELP [el-GR][/h3] [h2][list] [*]added features [/list] [/h2] [h3]added TIME options: -constant -descending -stop [/h3]