feat: Init file structure set up

Resolves #1 (closed)

config/application/secret.properties.sample

+quarkus.datasource.jdbc.url=jdbc:mariadb://localhost:$USSAPI_MYSQL_PORT/$MARIADB_DB_NAME
+%dev.quarkus.datasource.jdbc.url=jdbc:mariadb://mariadb:$USSAPI_MYSQL_PORT/$MARIADB_DB_NAME
+quarkus.datasource.username=$MARIADB_USERNAME
+quarkus.datasource.password=$MARIADB_PASSWORD
+
+quarkus.oidc-client.auth-server-url=$KEYCLOAK_FOUNDATIONDB_REALM_URL
+quarkus.oidc-client.client-id=$FOUNDATION_OIDC_CLIENT_ID
+quarkus.oidc-client.credentials.secret=$FOUNDATION_OIDC_CLIENT_CREDENTIALS