feat: create documentation for the Kotlin Metadata JVM library (#4675)

* feat: creating documentation for the kotlin metadata jvm library

* removing unnecessary character

* updating code example

* implementing review comments

* updating metadata docs based on review comments

* adding and switching some admonitions, minor changes in wording

* rephrasing slightly

* implementing additional review comments

* adding some additional clarification to code example and correcting capitalization

* adding info about kotlin stability component for metadata-jvm library

* implementing comments from twr review

* last typo fix

Author: daniCsorbaJB

docs/kr.tree

@@ -301,6 +301,7 @@
 			<include from="kc.tree" origin="coroutines" element-id="coroutines"/>
 		</toc-element>
 		<toc-element toc-title="Serialization (kotlinx.serialization)" topic="serialization.md"/>
+		<toc-element toc-title="Kotlin Metadata JVM (kotlin-metadata-jvm)" topic="metadata-jvm.md"/>
 		<toc-element toc-title="Lincheck (kotlinx.lincheck)">
 			<include from="kl.tree" origin="lincheck" element-id="lincheck"/>
 		</toc-element>

docs/topics/components-stability.md

@@ -98,6 +98,7 @@ to avoid the accidental use of features that have not been released as stable.
 | kotlin-stdlib (JVM)   | Stable     | 1.0.0                    |              |
 | kotlinx-coroutines    | Stable     | 1.3.0                    |              |
 | kotlinx-serialization | Stable     | 1.0.0                    |              |
+| kotlin-metadata-jvm   | Stable     | 2.0.0                    |              |
 | kotlin-reflect (JVM)  | Beta       | 1.0.0                    |              |
 | kotlinx-datetime      | Alpha      | 0.2.0                    |              |
 | kotlinx-io            | Alpha      | 0.2.0                    |              |