adds docker build action

.github/scripts/GenerateVersionNumber.ps1

@@ -0,0 +1,38 @@
+$latestVersions = $(git tag --merged origin/master)
+$latestVersion = [version]"0.0.0"
+Foreach ($version in $latestVersions) {
+  Write-Host $version
+  try {
+    if (([version]$version) -ge $latestVersion) {
+      $latestVersion = $version
+      Write-Host "Setting latest version to: $latestVersion"
+    }
+  } catch {
+    Write-Host "Unable to convert $($version). Skipping"
+    continue;
+  }
+}
+
+$newVersion = [version]$latestVersion
+$phase = ""
+$newVersionString = ""
+switch -regex ($Env:GITHUB_REF) {
+  '^refs\/heads\/master*.' {
+    $newVersionString = "{0}.{1}.{2}" -f $newVersion.Major, $newVersion.Minor, ($newVersion.Build + 1)
+  }
+  '^refs\/heads\/feature\/*.' {
+    $phase = 'alpha'
+  }
+  '^refs\/heads\/release\/*.' {
+    $phase = 'rc'
+  }
+  '^refs\/heads\/development*.' {
+    $phase = 'beta'
+  }
+  '^refs\/heads\/hotfix\/*.' {
+    $phase = 'hotfix'
+  }
+}
+$newVersionString = "{0}.{1}.{2}-{3}-{4}" -f $newVersion.Major, $newVersion.Minor, ($newVersion.Build + 1), $phase, $Env:GITHUB_RUN_NUMBER
+
+Write-Output $newVersionString