Add buffer read to `AudioBufferManager` and `I2S`. #2657

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Spelling, Style, Boards, Package	1m 26s
Mac (macOS-13)	3m 2s
Build 0	6m 17s
Mac (macOS-14)	2m 2s
Build 1	7m 45s
Build 2	7m 54s
Build PlatformIO Examples	3m 18s
Build RP2350 0	6m 8s
Build 3	7m 51s
Build RP2350 1	6m 43s
Build TinyUSB Examples	3m 59s
Build 4	7m 9s
Build RP2350-RISCV 0	5m 41s
Build RP2350 2	6m 40s
Build 5	6m 55s
Build RP2350-RISCV 1	6m 15s
Build RP2350 3	6m 28s
Build Every Variant 0	6m 45s
Build RP2350-RISCV 2	7m 3s
Build RP2350 4	6m 43s
Build Every Variant 1	7m 8s
Build RP2350-RISCV 3	6m 55s
Windows	3m 11s
Build RP2350 5	6m 38s
Build RP2350-RISCV 4	6m 10s
Build RP2350-RISCV 5	6m 7s
	2h 32m 13s

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