Merge pull request #18 from sparkfun/master

Add qwiic_sgp40

Author: makin-stuff

.gitmodules

@@ -82,6 +82,9 @@
 [submodule "qwiic/drivers/qwiic_pir"]
 	path = qwiic/drivers/qwiic_pir
 	url = https://github.com/sparkfun/Qwiic_PIR_Py
+[submodule "qwiic/drivers/qwiic_sgp40"]
+	path = qwiic/drivers/qwiic_sgp40
+	url = https://github.com/sparkfun/Qwiic_SGP40_Py
 [submodule "qwiic/drivers/qwiic_kx13x"]
 	path = qwiic/drivers/qwiic_kx13x
 	url = https://github.com/sparkfun/Qwiic_KX13X_Py