Editor GPU: Reduce memory use in the atlas glyph storage buffers

[Tyriar]

The buffer that stores all the texture atlas information is fixed to FloatsPerEntry*5000. This should be more dynamically sized to reduce memory usage.

vscode/src/vs/editor/browser/viewParts/linesGpu/viewLinesGpu.ts

Lines 291 to 292 in bd21f3c

	// TODO: Dynamically set buffer size
	const values = new Float32Array(GlyphStorageBufferInfo.FloatsPerEntry * TextureAtlasPage.maximumGlyphCount);