Added Pupnet Build config

Utilizing Pupnet to allow for easy building of various builds of the app
for multiple platforms.

app.pupnet.conf

@@ -0,0 +1,98 @@
+# PUPNET DEPLOY: 1.9.0
+# Use: 'pupnet --help conf' for information.
+
+# APP PREAMBLE
+AppBaseName = FreeTubeSyncer
+AppFriendlyName = FreeTube Syncer
+AppId = dev.eumario.FreeTubeSyncer
+AppVersionRelease = 0.1.0
+AppShortSummary = A Synchronization tool for FreeTube
+AppDescription = """
+    A small utility program, that sits in your system tray, and
+    synchronizes your FreeTube History, Playlists, Profiles,
+    Search History and Settings with a Remote REST API server.
+
+    The server is a docker image, and more information can be
+    found at https://forge.eumario.dev/eumario/FreeTubeSync
+"""
+AppLicenseId = MIT
+AppLicenseFile = 
+AppChangeFile = 
+
+# PUBLISHER
+PublisherName = EuMario
+PublisherId = dev.eumario
+PublisherCopyright = Copyright (C) EuMario Development 2025
+PublisherLinkName = Home Page
+PublisherLinkUrl = https://eumario.dev/
+PublisherEmail = mario@eumario.dev
+
+# DESKTOP INTEGRATION
+DesktopNoDisplay = false
+DesktopTerminal = false
+DesktopFile = 
+StartCommand = 
+PrimeCategory = 
+MetaFile = 
+IconFiles = """
+    FreeTubeSyncer/Assets/freetubesyncer.64.png
+"""
+
+# DOTNET PUBLISH
+DotnetProjectPath = FreeTubeSyncer
+DotnetPublishArgs = -p:Version=${APP_VERSION} --self-contained true -p:DebugType=None -p:DebugSymbols=false
+DotnetPostPublish = 
+DotnetPostPublishOnWindows = 
+
+# PACKAGE OUTPUT
+PackageName = freetubesyncer
+OutputDirectory = builds/OUT
+
+# APPIMAGE OPTIONS
+AppImageArgs = 
+AppImageRuntimePath = 
+AppImageVersionOutput = false
+
+# FLATPAK OPTIONS
+FlatpakPlatformRuntime = org.freedesktop.Platform
+FlatpakPlatformSdk = org.freedesktop.Sdk
+FlatpakPlatformVersion = 23.08
+FlatpakFinishArgs = """
+    --socket=x11
+    --socket=wayland
+    --socket=fallback-x11
+    --share=network
+    --filesystem=/home
+    --filesystem=/tmp
+"""
+FlatpakBuilderArgs = 
+
+# RPM OPTIONS
+RpmAutoReq = false
+RpmAutoProv = true
+RpmRequires = """
+    krb5-libs
+    libicu
+    openssl-libs
+"""
+
+# DEBIAN OPTIONS
+DebianRecommends = """
+    libc6
+    libgcc1
+    libgssapi-krb5-2
+    libicu70
+    libssl3
+    libstdc++6
+    zlib1g
+"""
+
+# WINDOWS SETUP OPTIONS
+SetupGroupName = 
+SetupAdminInstall = false
+SetupCommandPrompt = 
+SetupMinWindowsVersion = 10
+SetupSignTool = 
+SetupSuffixOutput = 
+SetupVersionOutput = false
+SetupUninstallScript =