Added AAX support

Plugin: Find the right display for plugin search

When adjusting the max height of the search window, firgure out the
right display as the user might not be on the primary display.
(fixes apohl79#330)

Server: Trim starting "-" from scan log filenames

Server: Latency compentation for bypass handling

When a plugin gets bypassed AG will not adjust/reduce the latency to
compensate for the removed processor but keep it constant by injecting
samples if needed. This will prevent the host from interrupting the
audio.

Updated README

Tracing: Added client ID

Plugin: Fixed potential deadlock in AudioStreamer

Logging: added windows debug logging support

Multiple changes

Genaral:
- Message: Improved handling of send failures
- CPU load support (added missing classes)

Plugin:
- Linux support
- Fixed mDNS host lookup updates
- Fixed mDNS service thread shutdown

Server:
- FFmpeg/MJPEG support

Added generic editor as alternative to screen capturing