feat: expose the default font bytes

[seabassjh]

Objective

• Enables use cases where third-party crates would want to use the default font as well see linebender's use

Solution

• Uses include_bytes macro and make it pub

[simbleau]

This would help me because we have a renderer that renders text, and I'd like to add a default_font feature to my crate that propagates the default font from bevy_text.

[alice-i-cecile]

Shouldn't this be used internally somewhere?

[simbleau]

It's not

[simbleau]

It's only used here:

bevy/crates/bevy_text/src/lib.rs

Lines 129 to 135 in 11ecc4d

	#[cfg(feature = "default_font")]
	load_internal_binary_asset!(
	app,
	Handle::default(),
	"FiraMono-subset.ttf",
	|bytes: &[u8], _path: String| { Font::try_from_bytes(bytes.to_vec()).unwrap() }
	);

[BD103]

In the future, would it be good to implement:

const MY_FONT: &[u8] = include_bytes!("FireMono-subset.ttf");

load_internal_binary_asset!(
    app,
    Handle::default(),
    MY_FONT,
    |bytes: &[u8], _path: String| { Font::try_from_bytes(bytes.to_vec()).unwrap() }
); 

So that you could reference both the underlying const and the asset?

[simbleau]

Approved @alice-i-cecile .