Update word list (#507)

* Add new common words to the cSpellWordList.txt

.github/.cSpellWords.txt

@@ -1,34 +1,44 @@
+cbmc
 CBMC
+cbor
 CBOR
-CMOCK
-CMock
+cborvalue
+cmock
 Cmock
+CMock
+CMOCK
+coremqtt
+coverity
 Coverity
+CSDK
+ctest
 DCMOCK
+decihours
+Decihours
+DECIHOURS
+deinitializing
 DNDEBUG
 DUNITY
 FOOB
 FOOBA
 FOOBDA
-MISRA
-MQTT
-Misra
-OPTIMISED
-Wunused
-cbmc
-cbor
-cborvalue
-cmock
-coverity
-ctest
-deinitializing
+getpacketid
 isystem
+itimerspec
 lcov
 lpthread
 misra
+Misra
+MISRA
 mqdes
+MQTT
 mqttstatus
 mqueue
+mypy
+nondet
+Nondet
+NONDET
+OPTIMISED
 osstatus
 otahttppage
 otahttpsectionoverview
@@ -40,7 +50,21 @@ otapalpage
 otapalsectionoverview
 pbuffer
 pclienttoken
+pylint
+pytest
+pyyaml
 sinclude
 stringz
 tinycbor
+UNACKED
+unpadded
+Unpadded
+UNPADDED
+UNSUB
+UNSUBACK
+unsubscriptions
 utest
+vect
+Vect
+VECT
+Wunused