Support use of environment variables in classPaths

w.r.t. launch.json, this does not work:

"classPaths": [
                "$Auto",
                "$HOME/.m2/repository/com/oracle/database/jdbc/ojdbc10/19.15.0.0.1/ojdbc10-19.15.0.0.1.jar"
            ]

The classes pointed to by $HOME/.m2/repository/com/oracle/database/jdbc/ojdbc10/19.15.0.0.1/ojdbc10-19.15.0.0.1.jar are not available to the Java program.

if I replace $HOME with its actual value, it works e.g.:

"classPaths": [
                "$Auto",
                "/Users/me/.m2/repository/com/oracle/database/jdbc/ojdbc10/19.15.0.0.1/ojdbc10-19.15.0.0.1.jar"
            ]

Environment

• Operating System: Mac OS Big Sur
• JDK version: 17
• Visual Studio Code version:

Version: 1.74.2 (Universal)
Commit: e8a3071ea4344d9d48ef8a4df2c097372b0c5161
Date: 2022-12-20T10:26:09.430Z
Electron: 19.1.8
Chromium: 102.0.5005.167
Node.js: 16.14.2
V8: 10.2.154.15-electron.0
OS: Darwin x64 20.6.0
Sandboxed: No

• Java extension version:
• Java Debugger extension version:

Steps To Reproduce

1. [step 1]
2. [step 2]

[attach a sample project reproducing the error]
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Current Result

Expected Result

Additional Informations

首先跟踪 Java 调试器如何处理 launch.json 中的 classPaths，然后使用 $HOME 和对应的展开路径重现该配置。当 classPaths 中的环境变量得到解析，使 Java 程序能够从所引用的 JAR 加载类时，即表示完成。