add archiver as alias for arc

archiver/install.ps1

@@ -0,0 +1,5 @@
+#!/bin/pwsh
+
+echo "'archiver@$Env:WEBI_TAG' is an alias for 'arc@$Env:WEBI_VERSION'"
+IF ($Env:WEBI_HOST -eq $null -or $Env:WEBI_HOST -eq "") { $Env:WEBI_HOST = "https://webinstall.dev" }
+curl.exe -fsSL "$Env:WEBI_HOST/arc@$Env:WEBI_VERSION" | powershell

archiver/install.sh

@@ -0,0 +1,10 @@
+# title: Archiver (arc alias)
+# homepage: https://webinstall.dev/arc
+# tagline: Alias for https://webinstall.dev/arc
+# alias: arc
+# description: |
+#   See https://webinstall.dev/arc
+
+echo "'archiver@${WEBI_TAG:-stable}' is an alias for 'arc@${WEBI_VERSION:-}'"
+WEBI_HOST=${WEBI_HOST:-"https://webinstall.dev"}
+curl -fsSL "$WEBI_HOST/arc@${WEBI_VERSION:-}" | bash