Add powershell script

Author: lukekim

sign.ps1

@@ -0,0 +1,11 @@
+echo $env:DIGICERT_TOKEN_PASSWORD | jarsigner -verbose `
+    -tsa http://timestamp.digicert.com `
+    -keystore NONE `
+    -storetype PKCS11 `
+    -storepass $env:DIGICERT_TOKEN_PASSWORD `
+    -providerClass sun.security.pkcs11.SunPKCS11 `
+    -providerArg "$env:DIGICERT_TOKEN_CFG_PATH" `
+    -sigalg SHA256withRSA `
+    -signedjar $env:SIGNED_BINARY_NAME `
+    spice.taco `
+    "$env:DIGICERT_KEY_ALIAS"