Add "IBM Informix" to the landscape - Platform section

[mtamaskar]

IBM Informix is an enterprise class database ideally suited for data persistence and analytics on edge servers and gateways. It has low install footprint, low memory requirement, built-in support for SQL, NoSQL, Time-series and Geospatial data types, and requires no administration. It also support seamless replication of filtered and aggregated data to central server for long term storage and deep analytics.
https://www.ibm.com/products/informix