based on: https://github.com/mongoose-os-apps/empty

added libs: mongoose-os-libs/wifi, mongoose-os-libs/http-server

When we build this app with mongoose-os v2.3 versus mongoose-os v1.26 the heap available to us AFTER connecting to the http server is around 1.3kB less. (we just use a different mos tool (mos update 2.3/1.26) to build)

mgos_http_ev 0x3fff0d34 HTTP connection from 192.168.4.2:54413
endpoint_handler available heap: 45268

mgos_http_ev 0x3fff0ed4 HTTP connection from 192.168.4.2:54710
endpoint_handler available heap: 43948

please see folder "logs" for detailled logs! The heap increase happens when switching from v1.26 to 2.0!