Matches new logic in HomeSpan CLI, except that wait time cycles from 2 to 10 seconds in steps of 2 seconds, then repeats, since user is expected to be manually monitoring the process, and the Access Point auto times-out in 300 seconds anyway.
WiFi connection now occurs asynchronously so that if WiFi is lost, or cannot be connected at start-up, the device still operates intead of blocking while it tries to connect. The new logic should allow for a wider range of chips to connect.
1) Used `const char *` instead of `char *` where appropriate, including the need to create a dummy blank string for us in certain places.
2) Set initialization of WiFiClient to 0 instead of NULL, since WiFiClient is not a pointer (probably don't need to set it to anything since WiFiClient overrides the boolean operator anyway).
3) Cleaned up some of the messaging and logic when WiFi tries to connect so that users know to wait a bit.
4) Only remaining warning messages are for casting SpanService to (void *), which I think i unavailable (and is not forbidden).
To Do: Go through examples and check for warnings (will likely need to convert `char *` to `const char *` in many places.
This prevents re-visits to the landing-page that resets the statusLED every time. Also eliminates the need to keep track of when landing page is accessed and to perform any initial re-direction.
Ensures statusLED indicates a client is connected as soon as it received its first GET, even if the re-direction to /landing-page is yet to be accessed. This was needed to trigger LED_AP_CONNECTED when connecting with QR code.
Convention is that every *.cpp references, in this order:
1) Any required core librries
2) Its own *.h (i.e. Foo.cpp -> Foo.h)
3) All other *.h files needed by the cpp, UNLESS those *.h files are already in its own *.h file. Must include all *.h files that are not in its own *.h file even if it is others that are referenced.
Created separate init() methods for PushButton and Blinker. Created HomeSpan:setControlPin and HomeSpan:setStatusPin that can be called from main setup() to modify the defaults. All default settings being migrated to Settings.h
Move all configuration code into Network.cpp, eliminating any calls or connection to HAP.cpp. Network.cpp is now standalone for HomeSpan.cpp to call directly to handle ALL apects of WiFI and Setup Code initialization.
Also move TempBuffer from HAP.h to Utils.h so it can be used by Network.h
Gregg