added update script

update.ps1

@@ -0,0 +1,55 @@
+Write-Output "Starting update..."
+
+$currentVersionString = (Get-Content .\meta.json | ConvertFrom-Json).version
+Write-Output "Current version: $currentVersion"
+
+Write-Output "Searching for newest version..."
+$newestVersionString = ""
+$req = Invoke-WebRequest https://github.com/DerTyp876/ts5-obs-overlay/releases/tag/v0.1.2
+
+foreach ($tag in $req.ParsedHtml.body.getElementsByTagName('h1')) {
+  if ($tag.innerText[0] -eq "v") {
+    $newestVersionString = $tag.innerText
+  }
+}
+
+if ($newestVersionString -ne "") {
+  Write-Output "Newest version found: $newestVersion"
+
+
+  $currentVersion = ($currentVersionString -replace "v").split(".")
+  $newestVersion = ($newestVersionString -replace "v").split(".")
+
+  if ($currentVersion[0] -gt $newestVersion[0]) {
+    Write-Output "Current version is up to date!"
+  }
+  elseif ($currentVersion[1] -gt $newestVersion[1]) {
+    Write-Output "Current version is up to date!"
+  }
+  elseif ($currentVersion[2] -ge $newestVersion[2]) {
+    Write-Output "Current version is up to date!"
+  }
+  else {
+    Write-Output "Updating to newer version..."
+
+    Remove-Item * -Recurse -Force -Confirm -Exclude "update.ps1"
+
+    mkdir ./temp
+    attrib +h ./temp
+    Write-Output "Downloading newer version..."
+    Invoke-WebRequest -Uri "https://github.com/DerTyp876/ts5-obs-overlay/archive/refs/tags/v0.1.2.zip" -OutFile "./temp/$newestVersionString.zip"
+    Write-Output "Extracting archive..."
+    Expand-Archive -Path "./temp/$newestVersionString.zip" -DestinationPath "./temp/"
+    Get-ChildItem -Path "./temp/ts5-obs-overlay-$($newestVersionString -replace 'v')" -Recurse | Move-Item -Destination "./"
+
+    Remove-Item "./temp" -Recurse -Force -Confirm
+
+    Write-Output "You are now up to date again!"
+  }
+}
+else {
+  Write-Output "No new version found!"
+}
+
+
+