Added repeating background sample

sample-tiled-background/.gitignore

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+/build

sample-tiled-background/build.gradle.kts

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+import com.soywiz.korge.gradle.*
+
+apply<KorgeGradlePlugin>()
+
+korge {
+	id = "com.soywiz.samples.tiledbackground"
+}

sample-tiled-background/src/commonMain/kotlin/main.kt

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+import com.soywiz.korge.*
+import com.soywiz.korge.time.*
+import com.soywiz.korge.view.tiles.*
+import com.soywiz.korim.bitmap.*
+import com.soywiz.korim.format.*
+import com.soywiz.korio.async.*
+import com.soywiz.korio.file.std.*
+
+suspend fun main() = Korge(width = 512, height = 512) {
+	val tileset = TileSet(mapOf(0 to bitmap("korge.png").toBMP32().scaleLinear(0.5, 0.5).slice()))
+	val tilemap = tileMap(Bitmap32(1, 1), repeatX = TileMap.Repeat.REPEAT, repeatY = TileMap.Repeat.REPEAT, tileset = tileset)
+	launchImmediately {
+		while (true) {
+			tilemap.x += 1
+			tilemap.y += 0.25
+			delayFrame()
+		}
+	}
+}
+
+suspend fun bitmap(path: String) = resourcesVfs[path].readBitmap()