:fire: add LaVA support and GPT vision API, Multiple requests for llama.cpp, return JSON types (#1254)

* wip

* wip

* Make it functional

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* wip

* Small fixups

* do not inject space on role encoding, encode img at beginning of messages

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* Add examples/config defaults

* Add include dir of current source dir

* cleanup

* fixes

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* fixups

* Revert "fixups"

This reverts commit f1a4731ccadf7226c6589d6d39131376f0811625.

* fixes

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

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Signed-off-by: Ettore Di Giacinto <mudler@localai.io>