Add buffer read to `AudioBufferManager` and `I2S`. #2655

Job	Run time
Mac (macOS-13)	2m 51s
Build PlatformIO Examples	3m 4s
Mac (macOS-14)	2m 11s
Spelling, Style, Boards, Package	1m 26s
Build 0	6m 29s
Build RP2350 0	6m 25s
Build 1	7m 32s
Build RP2350-RISCV 0	6m 29s
Build TinyUSB Examples	3m 57s
Build RP2350 1	6m 45s
Build RP2350-RISCV 1	6m 14s
Build RP2350 2	6m 43s
Build 2	8m 16s
Build RP2350-RISCV 2	7m 6s
Build RP2350 3	6m 56s
Build 3	8m 54s
Build RP2350-RISCV 3	6m 29s
Build Every Variant 0	7m 11s
Build RP2350 4	6m 35s
Build 4	7m 20s
Build Every Variant 1	7m 2s
Build RP2350 5	7m 9s
Build 5	6m 47s
Build RP2350-RISCV 4	6m 15s
Build RP2350-RISCV 5	6m 16s
Windows	3m 22s
	2h 35m 44s

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