Not work with SF Symbols 2.1 font file

[tien1504]

[tien1504]

sfsymbols/Sources/SFSymbolsCore/Font.swift

Lines 84 to 85 in 138680d

	guard let data = CTFontCopyDecodedSYMPData(font) else { return nil }
	guard let csv = String(data: data, encoding: .utf8) else { return nil }

String from decoded data is nil, the app then falls back to the old font file

[WaveLong]

This is because the structure of otf file of v1 and v2 are different. Symp table exists only in v1 otf file. But I dont know how to fix this bug