Simple webchat for server (#1998)

* expose simple web interface on root domain

* embed index and add --path for choosing static dir

* allow server to multithread

because web browsers send a lot of garbage requests we want the server
to multithread when serving 404s for favicon's etc. To avoid blowing up
llama we just take a mutex when it's invoked.


* let's try this with the xxd tool instead and see if msvc is happier with that

* enable server in Makefiles

* add /completion.js file to make it easy to use the server from js

* slightly nicer css

* rework state management into session, expose historyTemplate to settings

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

1 files changed, 193 insertions, 0 deletions

diff --git a/examples/server/completion.js.hpp b/examples/server/completion.js.hpp
new file mode 100644
index 00000000..002830ca
--- /dev/null
+++ b/examples/server/completion.js.hpp
@@ -0,0 +1,193 @@
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+};
+unsigned int completion_js_len = 2275;