Add -s option to curl calls in upload.sh script

Rework Docker image:
- Add external directories with files for configuration, security etc.
- Add config option to change database connection. Add associated config class
- Change entrypoint from upload script to java process start

src/main/resources/config/application.properties → config/application.properties

@@ -10,4 +10,7 @@ server.ssl.enabled=${SSL_ENABLED:false}
 server.ssl.key-store-type=${KEY_STORE_TYPE:PKCS12}
 server.ssl.key-store=${KEY_STORE:classpath:keystore/termite.p12}
 server.ssl.key-store-password=${KEY_STORE_PASSWORD:changeme}
-server.ssl.key-alias=${KEY_ALIAS:termite}
+server.ssl.key-alias=${KEY_ALIAS:termite}
+
+# Database
+database.connection.url=${DATABASE_CONN_URL:jdbc:sqlite:database/termite.db}