Add pico-8 emulator support

[finger563]

Add PICO-8 emulator support to expand the available game library.

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⚡ Static analysis result ⚡

🔴 cppcheck found 1 issue! Click here to see details.

esp-box-emu/components/pico8/src/pico8.cpp

Lines 246 to 251 in 6f2b4b6

	memset(buffer, 0, frames * 2 * sizeof(int16_t)); // Stereo
	return;
	}
	// Get audio samples from femto8
	femto8_get_audio_samples(buffer, frames);

!Line: 246 - warning: Either the condition '!buffer' is redundant or there is possible null pointer dereference: buffer. [nullPointerRedundantCheck] !Line: 244 - note: Assuming that condition '!buffer' is not redundant !Line: 246 - note: Null pointer dereference

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