Merge pull request #342 from jquatier/thinknode-m1-gps

ThinkNode m1 GPS support

variants/thinknode_m1/platformio.ini

@@ -25,6 +25,9 @@ build_src_filter = ${nrf52840_thinknode_m1.build_src_filter}
   +<helpers/*.cpp>
   +<helpers/nrf52/ThinkNodeM1Board.cpp>
   +<../variants/thinknode_m1>
+lib_deps =
+  ${nrf52840_thinknode_m1.lib_deps}
+  stevemarple/MicroNMEA @ ^2.0.6
 debug_tool = jlink
 upload_protocol = nrfutil