add wifi manager esp32 (#414)

* add wifi manager esp32

lib/WiFiManager/.github/CONTRIBUTING.md

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+## Contributing PRs and ISSUES
+
+The development branch is the active branch, no features or bugs will be fixed against master ( hotfixes may be considered ).
+
+Please test against development branch before submitting issues, issues against master will be closed, 
+
+PRs against master may be kept open if provides something useful to other members.
+
+Please open issues before sumbitting PRs against development, as commits might be occuring very frequently.
+
+### Documentation is in progress
+https://github.com/tzapu/WiFiManager/issues/500

lib/WiFiManager/.github/ISSUE_TEMPLATE.md

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+## PLEASE TRY DEVELOPMENT BRANCH before submitting bugs on release or master, in case they were already fixed. ##
+
+Issues without basic info will be ignored or closed!
+
+Please fill the info fields, it helps to get you faster support ;)
+
+if you have a stack dump decode it:
+https://github.com/esp8266/Arduino/blob/master/doc/Troubleshooting/stack_dump.rst
+
+for better debug messages:
+https://github.com/esp8266/Arduino/blob/master/doc/Troubleshooting/debugging.rst
+
+----------------------------- Remove above -----------------------------
+
+### Basic Infos
+
+#### Hardware
+WiFimanager Branch/Release:  Development
+
+Esp8266/Esp32: 
+
+Hardware:			ESP-12e, esp01, esp25
+
+Core Version:      	2.4.0, staging
+
+### Description
+
+Problem description
+
+### Settings in IDE
+
+Module:  			NodeMcu, Wemos D1
+
+Additional libraries: 
+
+### Sketch
+
+```cpp
+
+#include <Arduino.h>
+
+void setup() {
+
+}
+
+void loop() {
+
+}
+```
+
+### Debug Messages
+
+```
+messages here
+```
+