Initialize indication

initialize is the first b3270 protocol indication, produced by b3270 when it starts.

In XML, it contains other indications that give the initial state of the emulator.

In JSON, it contains an array of objects containing the initial state.

Example (XML)
  ...

Example (JSON)
New in 4.2 { "initialize": [    { "hello": { "version": "4.2.1", "build": "b3270 ...", ... },    { "code-pages": [        {"name": "cp037", "aliases": [ "cp37", "us", "us-intl" ] }, ...      ]     }   ] }