Add plugin to control playback speed like in YouTube (from 0.25 to 2)

plugins/playback-speed/templates/slider.html

@@ -0,0 +1,94 @@
+<div
+	class="menu-item ytmusic-menu-popup-renderer"
+	role="option"
+	tabindex="-1"
+	aria-disabled="false"
+	aria-selected="false"
+>
+	<paper-slider
+		id="playback-speed-slider"
+		class="volume-slider style-scope ytmusic-player-bar on-hover"
+		max="100"
+		min="0"
+		step="5"
+		dir="ltr"
+		title="Playback speed"
+		aria-label="Playback speed"
+		role="slider"
+		tabindex="0"
+		aria-valuemin="0"
+		aria-valuemax="100"
+		aria-valuenow="50"
+		aria-disabled="false"
+		value="50"
+		><!--css-build:shady-->
+		<div id="sliderContainer" class="style-scope paper-slider">
+			<div class="bar-container style-scope paper-slider">
+				<paper-progress
+					id="sliderBar"
+					aria-hidden="true"
+					class="style-scope paper-slider"
+					role="progressbar"
+					value="50"
+					aria-valuenow="50"
+					aria-valuemin="0"
+					aria-valuemax="100"
+					aria-disabled="false"
+					style="touch-action: none;"
+					><!--css-build:shady-->
+
+					<div id="progressContainer" class="style-scope paper-progress">
+						<div
+							id="secondaryProgress"
+							class="style-scope paper-progress"
+							hidden="true"
+							style="transform: scaleX(0);"
+						></div>
+						<div
+							id="primaryProgress"
+							class="style-scope paper-progress"
+							style="transform: scaleX(0.5);"
+						></div>
+					</div>
+				</paper-progress>
+			</div>
+			<dom-if class="style-scope paper-slider"
+				><template is="dom-if"></template
+			></dom-if>
+			<div
+				id="sliderKnob"
+				class="slider-knob style-scope paper-slider"
+				style="left: 50%; touch-action: none;"
+			>
+				<div
+					class="slider-knob-inner style-scope paper-slider"
+					value="50"
+				></div>
+				<paper-ripple
+					id="ink"
+					center=""
+					class="circle style-scope paper-slider"
+					style="display: none;"
+					><!--css-build:shady-->
+
+					<div
+						id="background"
+						class="style-scope paper-ripple"
+						style="opacity: 0.006008;"
+					></div>
+					<div id="waves" class="style-scope paper-ripple"></div>
+				</paper-ripple>
+			</div>
+		</div>
+		<dom-if class="style-scope paper-slider"
+			><template is="dom-if"></template
+		></dom-if>
+	</paper-slider>
+
+	<div
+		class="text style-scope ytmusic-toggle-menu-service-item-renderer"
+		id="ytmcustom-playback-speed"
+	>
+		Speed (<span id="playback-speed-value">1</span>)
+	</div>
+</div>