add build scripts for windows

[ci skip]

dist/win/.gitignore

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+runtime
+Cryptomator
+installer

dist/win/build.bat

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+@echo off
+powershell -NoExit -ExecutionPolicy Unrestricted -Command .\build.ps1

dist/win/build.ps1

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+# check preconditions
+if ((Get-Command "git" -ErrorAction SilentlyContinue) -eq $null) 
+{ 
+   Write-Host "Unable to find git.exe in your PATH (try: choco install git)"
+   exit 1
+}
+if ((Get-Command "mvn" -ErrorAction SilentlyContinue) -eq $null) 
+{ 
+   Write-Host "Unable to find mvn.cmd in your PATH (try: choco install maven)"
+   exit 1
+}
+
+$buildDir = Split-Path -Parent $PSCommandPath
+$version = $(mvn -f $buildDir/../../pom.xml help:evaluate -Dexpression="project.version" -q -DforceStdout)
+$semVerNo = $version -replace '(\d\.\d\.\d).*','$1'
+$revisionNo = $(git rev-list --count HEAD)
+
+Write-Output "`$version=$version"
+Write-Output "`$semVerNo=$semVerNo"
+Write-Output "`$revisionNo=$revisionNo"
+Write-Output "`$buildDir=$buildDir"
+Write-Output "`$Env:JAVA_HOME=$Env:JAVA_HOME"
+
+# compile
+&mvn -B -f $buildDir/../../pom.xml clean package -DskipTests -Pwin
+Copy-Item "$buildDir\..\..\target\cryptomator-*.jar" -Destination "$buildDir\..\..\target\mods"
+
+# add runtime
+& "$Env:JAVA_HOME\bin\jlink" `
+	--verbose `
+	--output runtime `
+	--module-path "$Env:JAVA_HOME/jmods" `
+	--add-modules java.base,java.desktop,java.logging,java.naming,java.net.http,java.scripting,java.sql,java.xml,jdk.unsupported,jdk.crypto.ec,jdk.accessibility `
+	--no-header-files `
+	--no-man-pages `
+	--strip-debug `
+	--compress=1
+
+# create app dir
+& "$Env:JAVA_HOME\bin\jpackage" `
+	--verbose `
+	--type app-image `
+	--runtime-image runtime `
+	--input ../../target/libs `
+	--module-path ../../target/mods `
+	--module org.cryptomator.desktop/org.cryptomator.launcher.Cryptomator `
+	--dest . `
+	--name Cryptomator `
+	--vendor "Skymatic GmbH" `
+	--copyright "(C) 2016 - 2021 Skymatic GmbH" `
+	--java-options "-Xss5m" `
+	--java-options "-Xmx256m" `
+	--java-options "-Dcryptomator.appVersion=`"$semVerNo`"" `
+	--app-version "$semVerNo.$revisionNo" `
+	--java-options "-Dfile.encoding=`"utf-8`"" `
+	--java-options "-Dcryptomator.logDir=`"~/AppData/Roaming/Cryptomator`"" `
+	--java-options "-Dcryptomator.pluginDir=`"~/AppData/Roaming/Cryptomator/Plugins`"" `
+	--java-options "-Dcryptomator.settingsPath=`"~/AppData/Roaming/Cryptomator/settings.json`"" `
+	--java-options "-Dcryptomator.ipcSocketPath=`"~/AppData/Roaming/Cryptomator/ipc.socket`"" `
+	--java-options "-Dcryptomator.keychainPath=`"~/AppData/Roaming/Cryptomator/keychain.json`"" `
+	--java-options "-Dcryptomator.mountPointsDir=`"~/Cryptomator`"" `
+	--java-options "-Dcryptomator.showTrayIcon=true" `
+	--java-options "-Dcryptomator.buildNumber=`"msi-$revisionNo`"" `
+	--resource-dir resources `
+	--icon resources/Cryptomator.ico
+
+# patch app dir
+Copy-Item "contrib\*" -Destination "Cryptomator"
+attrib -r "Cryptomator\Cryptomator.exe"
+
+
+# create .msi bundle
+$Env:JP_WIXWIZARD_RESOURCES = "$buildDir\resources"
+& "$Env:JAVA_HOME\bin\jpackage" `
+	--verbose `
+	--type msi `
+	--win-upgrade-uuid bda45523-42b1-4cae-9354-a45475ed4775 `
+	--app-image Cryptomator `
+	--dest installer `
+	--name Cryptomator `
+	--vendor "Skymatic GmbH" `
+	--copyright "(C) 2016 - 2021 Skymatic GmbH" `
+	--app-version "$semVerNo" `
+	--win-menu `
+	--win-dir-chooser `
+	--win-shortcut-prompt `
+	--win-update-url "https:\\cryptomator.org" `
+	--win-menu-group Cryptomator `
+	--resource-dir resources `
+	--license-file resources/license.rtf `
+	--file-associations resources/FAvaultFile.properties