[MacOS] Ask user for permission to access microphone

This is required for MacOS 10.14 and later. This also requires an explanation why
access is required in the apps Info.plist. Hence added custom Info.plist templates
for each app.

src/swiftguistandard/Info.plist

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleName</key>
+	<string>swift gui</string>
+	<key>CFBundleDisplayName</key>
+	<string>swift gui</string>
+	<key>CFBundleExecutable</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleGetInfoString</key>
+	<string>swift project - free and open source pilot client</string>
+	<key>CFBundleIconFile</key>
+	<string>${ASSETCATALOG_COMPILER_APPICON_NAME}</string>
+	<key>CFBundleIdentifier</key>
+	<string>${PRODUCT_BUNDLE_IDENTIFIER}</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleSignature</key>
+	<string>${QMAKE_PKGINFO_TYPEINFO}</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>${MACOSX_DEPLOYMENT_TARGET}</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+	<key>NSSupportsAutomaticGraphicsSwitching</key>
+	<true/>
+	<key>NSMicrophoneUsageDescription</key>
+	<string>This application needs access to your Microphone for Vatsim Voice.</string>
+</dict>
+</plist>

src/swiftguistandard/swiftguistandard.pro

@@ -29,6 +29,9 @@ target.path = $$PREFIX/bin
 INSTALLS += target
 
 macx {
+    QMAKE_TARGET_BUNDLE_PREFIX = "org.swift-project"
+    QMAKE_INFO_PLIST = Info.plist
+
     # Modifies plugin path
     qtconf.path = $$PREFIX/bin/swiftguistd.app/Contents/Resources
     qtconf.files = qt.conf