Introduce HTTP API for plugins

[Mm2PL]

This adds a new API: c2.HTTPRequest that requires a new permission: Network.

[github-actions]

clang-tidy made some suggestions

[pajlada]

Design question:
Maybe rename the permission from HTTP to Network? I think this more accurately describes what the plugin will actually be allowed to do, with less of a technical description.
"Allows the plugin to make network requests over your network/over the internet/to third party websites".

Bit of an early review, haven't looked into the implementation of anything

[Nerixyz]

The following code segfaults after a short while:

local function send_req()
    local req = c2.HTTPRequest.create(c2.HTTPMethod.Get, "https://postman-echo.com/get")
    req:on_success(function(res)
    end)
    req:on_error(function(result)
    end)
    req:execute()
    c2.later(send_req, 100)
end

send_req()

The crash happens in the handlers of the request. Looking at the captured L, it's probably the thread from c2.later getting deleted while the callbacks hold on to it through lua_State.

[Mm2PL]

The crash happens in the handlers of the request. Looking at the captured L, it's probably the thread from c2.later getting deleted while the callbacks hold on to it through lua_State.

I'll have to store an ID of the plugin or something and get the state back then.

[github-actions]

clang-tidy made some suggestions

[github-actions]

clang-tidy made some suggestions

[github-actions]

clang-tidy made some suggestions