Introduced profiling instrumentation

[dkargin]

Introduced scope-based profiling instrumentation. Current instrumentation can use NVTX and/or VTune instrumentation.

[dkargin]

This instrumentation allows to inspect performance profile and get detailed view for most of application activities:

By default profiling instrumentation is turned off and not causing much overhead (about ~1000 cycles per scope invocation).

[past-due]

Looks like the main thing missing is adding the GPL preamble at the top of the new profiling.h and profiling.cpp files:

/*
	This file is part of Warzone 2100.
	Copyright (C) 2023  Warzone 2100 Project

	Warzone 2100 is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	Warzone 2100 is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with Warzone 2100; if not, write to the Free Software
	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/