Issue vdemydiuk#218: Used refenrces instead of pointers in C++ functions

Issue vdemydiuk#208: fixed issue with calling CheckOrders after start…

…ing TradeMonitor event MtApi has disconnected state

Update readme: updated links

Issue vdemydiuk#190: updated MtApi5.mq5 to version 1.7. Init string v…

…ariable _erro

Updated test application (MT5) to perform testing functions iBullsPow…

…er, iBearsPower, BarsCalculated, CopyBuffer.

MtApi (MT4) version 1.0.41

removed redundant old projects from repo

Issue vdemydiuk#74: Updated package Newtonsoft.Json from 8.0.3 to 12.0.2

Disable debug loging in MtApi.ex5

MtApi5.ex5: Update version to 1.5. Disable debug logging