Bundle support

I am experimenting with bevy_mod_scripting, sorry for any confusion.

I want to display Text purely in Lua. Here's the code so far

--[[ "convenience to add a component by string type name and return the component handle" ]]
local function add_component(entity, type_name)
    local t = world:get_type_by_name(type_name)
    world:add_default_component(entity, t)
    return world:get_component(entity, t)
end

function once()
    local e = world:spawn()

    local TextSection = world:get_type_by_name("TextSection")
    print(TextSection) -- "ScriptTypeRegistration"
    
    local TextStyle = world:get_type_by_name("TextStyle")
    print(TextStyle) -- "ScriptTypeRegistration"
    
    local text = add_component(e, "Text")
    print(text) -- "Text { sections: [], alignment: Left, linebreak_behavior: WordBoundary }"
    -- local text_section = add_component(e, "TextSection") -- error: TextSection is not a component
end

I am having troubles figuring out how to create a TextStyle and TextSection for use in my test.sections. Any ideas?

Start with the Lua example in the issue, especially world:get_type_by_name, add_default_component, and get_component, and trace how Text, TextStyle, and TextSection are registered. Done means a Lua script can construct the requested text data for Text.sections without treating TextSection as a component; no test or file is named in the issue.