OTA via browser or from internet location

[renatobo]

Examples at

• https://github.com/platformio/bintray-secure-ota
• https://lastminuteengineers.com/esp32-ota-web-updater-arduino-ide/
• https://github.com/chrisjoyce911/esp32FOTA
• https://github.com/ayushsharma82/AsyncElegantOTA