chore: Add jextract candidate (#664)

src/main/scala/io/sdkman/changelogs/JExtractMigrations.scala

@@ -0,0 +1,51 @@
+package io.sdkman.changelogs
+
+import com.github.mongobee.changeset.{ChangeLog, ChangeSet}
+import com.mongodb.client.MongoDatabase
+
+@ChangeLog(order = "082")
+class JExtractMigrations {
+
+  @ChangeSet(
+    order = "001",
+    id = "001_add_jextract_candidate",
+    author = "helpermethod"
+  )
+  def migration001(implicit db: MongoDatabase) =
+    Candidate(
+      candidate = "jextract",
+      name = "Jextract",
+      description =
+        "jextract is a tool which mechanically generates Java bindings from a native library headers.",
+      websiteUrl = "https://jdk.java.net/jextract/"
+    ).insert()
+
+  @ChangeSet(
+    order = "002",
+    id = "002_add_jextract_candidate",
+    author = "helpermethod"
+  )
+  def migration002(implicit db: MongoDatabase): Unit = {
+    List(
+      ("19-jextract+2-3", 2),
+      ("20-jextract+1-2", 1),
+      ("21-jextract+1-2", 1)
+    ).map {
+      case (version, patchNumber) =>
+        List(
+          (Linux64, "linux"),
+          (MacOSX, "macos"),
+          (Windows, "windows")
+        ).map {
+          case (platform, platformIdentifier) =>
+            Version(
+              "jextract",
+              version,
+              s"https://download.java.net/java/early_access/jextract/$patchNumber/openjdk-${version}_${platformIdentifier}-x64_bin.tar.gz",
+              platform
+            ).validate()
+              .insert()
+        }
+    }
+  }
+}