Added LANA TNY board #164

The LANA TNY is a development board by Phyx based on the CH32V203G6U6.
It is sold through the official Adafruit store: here
It is comparable to the already added Adafruit QT Py CH32V203 (in pull request #136) but has some extra GPIO pins exposed and some slightly different pin arrangement.
openwch/arduino_core_ch32#164

Author: jobitjoseph

variants/CH32V20x/CH32V203G6_LANA_TNY/CMakeLists.txt

@@ -0,0 +1,29 @@
+# v3.21 implemented semantic changes regarding $<TARGET_OBJECTS:...>
+# See https://cmake.org/cmake/help/v3.21/command/target_link_libraries.html#linking-object-libraries-via-target-objects
+cmake_minimum_required(VERSION 3.21)
+
+add_library(variant INTERFACE)
+add_library(variant_usage INTERFACE)
+
+target_include_directories(variant_usage INTERFACE
+  .
+)
+
+
+target_link_libraries(variant_usage INTERFACE
+  base_config
+)
+
+target_link_libraries(variant INTERFACE variant_usage)
+
+
+
+add_library(variant_bin STATIC EXCLUDE_FROM_ALL
+  PeripheralPins.c
+  variant_CH32V203G6_LANA_TNY.cpp
+)
+target_link_libraries(variant_bin PUBLIC variant_usage)
+
+target_link_libraries(variant INTERFACE
+  variant_bin
+)