Add native support for Windows (#4491)

* Add support for Windows

* Fixes for Windows

* Update unit tests

* Fix ffreport setting

* Add test script equivalents

* Fix fontconfig error in test stream

* Fix thumbnail generator

* Fix lint warnings

* Fix warnings in test stream script

* Implement cross-platform ocTestStream

* Migrate to cross-platform script

* Revert ocTestStream.sh

* Add missing EOL

* Alternative test scripts for non-linux environments

---------

Co-authored-by: Gabe Kangas <gabek@real-ity.com>

contrib/local-test.bat

@@ -0,0 +1,36 @@
+@echo off
+setlocal enabledelayedexpansion
+
+REM This script will make your local Owncast server available at a public URL.
+REM It's particularly useful for testing on mobile devices or want to test
+REM activitypub integration.
+REM Pass a custom domain as an argument if you have previously set it up at
+REM localhost.run. Otherwise, a random hostname will be generated.
+REM SET DOMAIN=me.example.com && test\test-local.bat
+REM Pass a port number as an argument if you are running Owncast on a different port.
+REM By default, it will use port 8080.
+REM SET PORT=8080 && test\test-local.bat
+
+REM Set default port if not provided
+if "%PORT%"=="" set PORT=8080
+set HOST=localhost
+
+echo Checking if web server is running on port %PORT%...
+
+REM Using PowerShell to check if the port is open (equivalent to nc -zv)
+powershell -Command "try { $tcpConnection = New-Object System.Net.Sockets.TcpClient; $tcpConnection.Connect('%HOST%', %PORT%); $tcpConnection.Close(); exit 0 } catch { exit 1 }"
+
+if %ERRORLEVEL% equ 0 (
+    echo Your web server is running on port %PORT%. Good.
+) else (
+    echo Please make sure your Owncast server is running on port %PORT%.
+    exit /b 1
+)
+
+if not "%DOMAIN%"=="" (
+    echo Attempting to use custom domain: %DOMAIN%
+    ssh -R "%DOMAIN%":80:localhost:%PORT% localhost.run
+) else (
+    echo Using auto-generated hostname for tunnel.
+    ssh -R 80:localhost:%PORT% localhost.run
+)