fix poll interval calculation in getPollInterval() update version to 1.1.8

set drift_timestamp usint EPOCH not NTP timestamp

Add a 10ms delay to Syslog messages to hopefully loose less Use platform 2.2.3 Use defines for various intervals that can be overridden with compile options attemp to disable lwip ntp with sntp_servermode_dhcp(0) Update version to 1.1.7

- increase CLOCK_STRETCH_LIMIT - bump SynchroClock version to 1.1.6 - define NTP_REQUEST_COUNT in platformio.ini for >1 NTP req's per cycle when more than one NTP choose the lowest delay - fix warning in UDPWrapper - use RF_NO_CAL when deep sleeping for quicker wakeup. - improve ClockTest

started unit tests (its a work in progress) moved many file to include & lib for easy access from unit tests broke pin definitions out into a seperate include file for easy access from tests

update SynchroClock version to 1.1.5

Add include and test directories for future use and because platformio init creates them even with an existing project.

Update README

sync clock with RTC when WiFi connect fails in case of power outage where WiFi is not available

Fix filename in comment at top of file.