ESP32: OTA Requestor and OTA Provider example applications (project-c…

…hip#11320)

* Added OTA requester and provider app for esp32

* Apply suggestions from code review

Co-authored-by: Boris Zbarsky <bzbarsky@apple.com>

* Addressed review comments

* Addressed review comments

* Apply suggestions from code review

Co-authored-by: Carol Yang <clyang@apple.com>

* Restyled by clang-format

* Addressed review comments

* Added few words to spellcheck dictionary

* Added .gitignore files to esp32 ota apps

Co-authored-by: Boris Zbarsky <bzbarsky@apple.com>
Co-authored-by: Carol Yang <clyang@apple.com>
Co-authored-by: Restyled.io <commits@restyled.io>

.github/.wordlist.txt

@@ -39,6 +39,7 @@ AppConfig
 ApplicationBasic
 ApplicationIdentifier
 ApplicationLauncher
+ApplyUpdateRequest
 approver
 appspot
 aps
@@ -340,6 +341,7 @@ env
 esd
 ESPPORT
 Espressif
+esptool
 eth
 EthernetNetworkDiagnostics
 ethernets
@@ -690,6 +692,11 @@ optionsMask
 optionsOverride
 orgs
 OTA
+OTAProviderIpAddress
+OTAProviderNodeId
+OTAProviderSerialPort
+OTARequesterImpl
+OTARequestorSerialPort
 OTBR
 otcli
 PAA
@@ -848,6 +855,7 @@ SetpointRaiseLower
 SetUpPINCode
 SetupQRCode
 sexualized
+shubhamdp
 SIGINT
 SiLabs
 SiliconLabs

examples/ota-provider-app/esp32/.gitignore

@@ -0,0 +1,5 @@
+*.vscode
+
+/build/
+/sdkconfig
+/sdkconfig.old

examples/ota-requestor-app/esp32/.gitignore

@@ -0,0 +1,5 @@
+*.vscode
+
+/build/
+/sdkconfig
+/sdkconfig.old