Adds code for List using Horologist

[kul3r4]

Adds sample code for Wear Compose list DAC using the ScalingLazyColumn from Horologist. The page itself will need a rewrite after adding this snippet.

[snippet-bot]

Here is the summary of changes.

You are about to add 2 region tags.

• wear/src/main/java/com/example/wear/snippets/list/List.kt:37, tag android_wear_list
• wear/src/main/java/com/example/wear/snippets/list/List.kt:69, tag android_wear_snap

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[garanj]

Looks good! I think maybe I don't understand snap and fling very well, I can see the rotaryMode set to Snap, where does the fling come into things?