Recipes to replace Guava `Immutable{Set|List|Map}.copyOf()` with Java `{Set|List|Map}.copyOf()`

[knutwannheden]

• Fixes #584

Add recipes to replace Guava ImmutableSet.copyOf(), ImmutableList.copyOf(), and ImmutableMap.copyOf() calls with Java Set.copyOf(), List.copyOf(), and Map.copyOf() calls.

• Add AbstractNoGuavaImmutableCopyOf class to provide a base for the new recipes.
• Add NoGuavaImmutableSetCopyOf, NoGuavaImmutableListCopyOf, and NoGuavaImmutableMapCopyOf classes extending AbstractNoGuavaImmutableCopyOf.
• Update no-guava.yml to include the new recipes.
• Add test classes NoGuavaImmutableSetCopyOfTest, NoGuavaImmutableListCopyOfTest, and NoGuavaImmutableMapCopyOfTest with test cases for the new recipes.

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[BramliAK]

In my opinion, a new abstract class known as AbstractNoGuavaImmutable can be created and the common methods can be added to it. We can further expand it with AbstractNoGuavaImmutableCopyOf.java and AbstractNoGuavaImmutableOf.java to eliminate the use of duplicated code.

[timtebeek]

I was thinking along the same lines, especially after the improvements you added @BramliAK ; reuse between these two is likely preferred over duplication.

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