Bus rework

- Implement vector in bus manager
- Memory calculation according to explanation from @Makuna
- Prefer 8 RMT before 8 I2S on ESP32 (fixes #4380)
- speed improvements in ABL
- verbose debugging
- get bus size from NPB (prototype)
- Parallel I2S output bugfix
- automatic selection of appropriate I2S bus (`X1xxxxxxMethod`)
- removed I2S0 on ESP32 (used by AudioReactive)
- renumbered internal bus numbers (iType)
- added buffer size reporting

wled00/data/settings_leds.htm

@@ -350,6 +350,17 @@
 						else LC.style.color = d.ro_gpio.some((e)=>e==parseInt(LC.value)) ? "orange" : "#fff";
 					}
 			});
+			const S2 = (oMaxB == 14) && (maxV == 4);
+			const S3 = (oMaxB == 14) && (maxV == 6);
+			if (oMaxB == 19 || S2 || S3) { // TODO: crude ESP32 & S2/S3 detection
+				if (maxLC > 300 || dC <= 2) {
+					d.Sf["PR"].checked = false;
+					gId("prl").classList.add("hide");
+				} else
+					gId("prl").classList.remove("hide");
+				maxD = (S2 || S3 ? 4 : 8) + (d.Sf["PR"].checked ? 8 : S2); // TODO: use bLimits() : 4/8RMT + (x1/x8 parallel) I2S1
+				maxB = oMaxB - (d.Sf["PR"].checked ? 0 : 7 + S3); // S2 (maxV==3) does support single I2S
+			}
 			// distribute ABL current if not using PPL
 			enPPL(sDI);
 
@@ -789,6 +800,7 @@ Swap: <select id="xw${s}" name="XW${s}">
 			Use less than <span id="wreason">800 LEDs per output</span> for the best experience!<br>
 		</div>
 		<hr class="sml">
+		<div id="prl" class="hide">Use parallel I2S: <input type="checkbox" name="PR"><br></div>
 		Make a segment for each output: <input type="checkbox" name="MS"><br>
 		Custom bus start indices: <input type="checkbox" onchange="tglSi(this.checked)" id="si"><br>
 		Use global LED buffer: <input type="checkbox" name="LD" onchange="UI()"><br>