git: openjdk/leyden: premain: Added spring-boot-getting-started demo

[duke]

Changeset: d7c97f22
Branch: premain
Author:    iklam <ilam3388 at gmail.com>
Date:      2024-07-26 10:27:04 +0000
URL:       https://git.openjdk.org/leyden/commit/d7c97f2257d329db98e42bd9a99959eefb7fbc71

Added spring-boot-getting-started demo

! README.md
! test/hotspot/jtreg/premain/README.md
! test/hotspot/jtreg/premain/lib/GithubMDChart.java
+ test/hotspot/jtreg/premain/spring-boot-getting-started/Application.java
+ test/hotspot/jtreg/premain/spring-boot-getting-started/Makefile
+ test/hotspot/jtreg/premain/spring-boot-getting-started/pom.xml