Migrate org.eclipse.search.tests from JUnit4 to JUnit5

[vogella]

• Convert @RunWith(Suite.class) to @suite
• Convert @Suite.SuiteClasses to @SelectClasses
• Update imports from org.junit.runners to org.junit.platform.suite.api
• Add org.junit.jupiter.api and org.junit.platform.suite.api to Import-Package

[github-actions]

Test Results

 2 943 files  +  474   2 943 suites  +474   2h 11m 13s ⏱️ + 44m 55s
 8 166 tests ±    0   7 921 ✅ ±    0  245 💤 ±  0  0 ❌ ±0 
23 568 runs  +2 457  22 786 ✅ +2 229  782 💤 +228  0 ❌ ±0 

Results for commit 1ce8b65. ± Comparison against base commit 1fa29c8.

This pull request removes 48 and adds 48 tests. Note that renamed tests count towards both.

org.eclipse.search.core.tests.LineConversionTest ‑ testBogusLines
org.eclipse.search.core.tests.LineConversionTest ‑ testConvertToCharacter
org.eclipse.search.core.tests.QueryManagerTest ‑ testAddQuery
org.eclipse.search.core.tests.QueryManagerTest ‑ testQueryListener
org.eclipse.search.core.tests.QueryManagerTest ‑ testRemoveQuery
org.eclipse.search.core.tests.TestSearchResult ‑ testAddMatch
org.eclipse.search.core.tests.TestSearchResult ‑ testAddMatchDifferentLength
org.eclipse.search.core.tests.TestSearchResult ‑ testAddMatchDifferentStart
org.eclipse.search.core.tests.TestSearchResult ‑ testAddMatchDifferentStartInOrder
org.eclipse.search.core.tests.TestSearchResult ‑ testAddMatches
…

AllSearchTests AllFileSearchTests AnnotationManagerTest ‑ testAddAnnotation
AllSearchTests AllFileSearchTests AnnotationManagerTest ‑ testBogusAnnotation
AllSearchTests AllFileSearchTests AnnotationManagerTest ‑ testRemoveQuery
AllSearchTests AllFileSearchTests AnnotationManagerTest ‑ testReplaceQuery
AllSearchTests AllFileSearchTests AnnotationManagerTest ‑ testSwitchQuery
AllSearchTests AllFileSearchTests FileSearchTests ‑ testBinaryContentTypeWithDescriberParallel
AllSearchTests AllFileSearchTests FileSearchTests ‑ testBinaryContentTypeWithDescriberSerial
AllSearchTests AllFileSearchTests FileSearchTests ‑ testDerivedFilesParallel
AllSearchTests AllFileSearchTests FileSearchTests ‑ testDerivedFilesSerial
AllSearchTests AllFileSearchTests FileSearchTests ‑ testFileNamePatternsParallel
…

This pull request removes 2 skipped tests and adds 2 skipped tests. Note that renamed tests count towards both.

org.eclipse.search.tests.filesearch.SearchResultPageTest ‑ testBasicDisplay
org.eclipse.search.tests.filesearch.SearchResultPageTest ‑ testRemoveTreeMatches

AllSearchTests AllFileSearchTests SearchResultPageTest ‑ testBasicDisplay
AllSearchTests AllFileSearchTests SearchResultPageTest ‑ testRemoveTreeMatches