hide launch shell on windows and introduce rotating logs

[jamesmarkchan]

windows currently shows the terminal mainly so we can see the terminal output. for the production release we should hide this and introduce logging w rotation so if a crash or error were to occur we could diagnose it,

Portable (run from a zip archive extracted to a runtime folder

./logs simple and within the app rt root.

windows installer:

%LOCALAPPDATA%

example:

C:\Users\<Username>\AppData\Local\JDiskMark\logs\

avoid:

1. %APPDATA%\Roaming - do not want any cloud sync
2. %TEMP% - this is not expected to persist

linux installers

~/.local/state/jdiskmark/logs/

we're not a system service so we would not use /var/log/jdiskmark.log

String xdgState = System.getenv("XDG_STATE_HOME");
String logDir;
if (xdgState != null && !xdgState.isEmpty()) {
    logDir = xdgState + "/jdiskmark/logs";
} else {
    logDir = System.getProperty("user.home") + "/.local/state/jdiskmark/logs";
}

macos installers

~/Library/Logs/jdiskmark/

optional: introduce a backchannel to send error reports back to our web portal so we can fix bugs in future releases.