Update ZigZag EA

[rosasurfer]

• added risk disclaimer
• updated order comments
• fixed creation of duplicate instance ids
• renamed inputs Entry.At.* to Entry.on*
• removed obsolete input Entry.onZigZagReversal
• changed status/log filename to ZigZag EA, yyyy.mm.dd HH.MM, <symbol>,<period> id=<sid>.*
• Donchian Channel widenings are now correctly checked against the previous tick
• rewrote ZigZag recalculation on bar 0 (zero)
• more verbose logging of ZigZag signal issues
• add Telegram notifications on StopTrading() due to TakeProfit
• global error callback EmergencyStop() to close all open positions

Other:

• added config options [Mail]->Enabled = On/Off and [Telegram]->Enabled = On/Off to control messaging adapters
• use SearchPath() to check existence of CLI tools for SendMail() and SendTelegramMessage()
• dropped obsolete StrIsPhoneNumber()
• fixed string conversion in AnsiToUtf8()
• fixed ArrayInsertDoubleArray() when the destination array was empty
• removed the default virtual ticker configuration for experts (the terminal now does this by itself)
• errors in an indicator under test stop the tester