Add alpha config for vufind.

Cherry-picked 47cb19e9.

local/alpha/config/vufind/config.ini

+[System]
+debug           = false
+
+[Index]
+url             = http://localhost:8080/solr
+
+[Parent_Config]
+relative_path = ../../../config/vufind/config.ini
+
+[Site]
+url = "https://alpha.finc.info/vufind_generic"
+
+[Authentication]
+hash_passwords = "1"
+
+encrypt_ils_password = "1"
+
+ils_encryption_key = "3e2ac9b644dd4e0b64b179a0309ead13bb59202a"