Move size adjustment logic out of `Entry`, I understand the impulse to put it there but it results in passing a lot of stuff around which isn't great. Rework `add(...)` in to `add(...)` and `addDeferred(...)`, faces are passed directly now instead of passing an entry, and an options struct is used instead of positional arguments for things like style, fallback, and size adjustment. Change size adjustment test back to a half pixel tolerance instead of 5% because the previous commit (allowing fractional pixel sizes) fixed the root cause of large differences.
This commit changes a LOT of areas of the code to use decl literals instead of redundantly referring to the type. These changes were mostly driven by some regex searches and then manual adjustment on a case-by-case basis. I almost certainly missed quite a few places where decl literals could be used, but this is a good first step in converting things, and other instances can be addressed when they're discovered. I tested GLFW+Metal and building the framework on macOS and tested a GTK build on Linux, so I'm 99% sure I didn't introduce any syntax errors or other problems with this. (fingers crossed)
For details see comments and FreeType docs @ https://freetype.org/freetype2/docs/reference/ft2-library_setup.html#ft_library https://freetype.org/freetype2/docs/reference/ft2-face_creation.html#ft_face tl;dr: FT_New_Face and FT_Done_Face require the Library to be locked for thread safety, and FT_Load_Glyph and FT_Render_Glyph and friends need the face to be locked for thread safety, since we're sharing faces across threads.
Unify grid metrics calculations by relying on shared logic mostly based on values directly from the font tables, this deduplicates a lot of code and gives us more control over how we interpret various metrics. Also separate metrics for underlined, strikethrough, and overline thickness and position, and box drawing thickness, so that they can individually be adjusted as the user desires.
Fixes #2364 This adds the bold, italic, and bold italic variants of JB Mono so it is built-in. This also fixes up the naming convention for the embedded font files across tests and removes redundant embedded font files.