display a graph of temperature from the NTC on the OLED

Dependencies:   SSD1308_128x64_I2C Grove_temperature

Revision:
0:50a79669d4e7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Grove_temperature.lib	Wed Dec 11 16:38:09 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/MACRUM/code/Grove_temperature/#aee37a51ccbb