feat: speedup startup time by excluding jars

[tltv]

Optimize class scanning of VaadinServletContextInitializer by excluding some commonly used jars and add support for vaadin.blocked-jar boolean property in META-INF/VAADIN/package.properties to exclude whole jar content from the class scanner.

Fixes: #19112

[github-actions[bot]]

Test Results

1 102 files  + 2  1 102 suites  +2   1h 19m 7s :stopwatch: +12s 7 042 tests + 4  6 993 :white_check_mark: + 4  49 :zzz: ±0  0 :x: ±0  7 377 runs  +16  7 318 :white_check_mark: +16  59 :zzz: ±0  0 :x: ±0 

Results for commit 95e0a66a. ± Comparison against base commit 350ca831.

:recycle: This comment has been updated with latest results.

[sonarcloud[bot]]

Quality Gate passed

Issues
48 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud