Create internal lib dir

[nvoxland]

Description

• Moves the shipped jar files to a new internal/lib directory without version info in the filename
• Moves the classpath creation logic out of the batch/bash scripts into a new LiquibaseLauncher class which now handles the additional directory.
• Adds a list of all the libraries used (including version) to the output of liquibase --version

Fixes #2845

Things to be aware of

• Changes the CLI launch script for linux/mac and windows
• Moves the logic for building up the classpath, so need to test that the priority of locations is preserved.
  • Priority is: liquibase_libs beats liquibase_home/lib beats liquibase_home/internal/lib

Things to worry about

• No unit tests for the launcher or script changes since they are "initializing" stuff that's hard to unit test currently
• Is it correctly respecting and reporting on the jar file location priorities?

[github-actions]

Unit Test Results

  4 512 files  ±0    4 512 suites  ±0   32m 7s ⏱️ - 1m 41s
  4 419 tests ±0    4 201 ✔️  - 4     218 💤 +4  0 ❌ ±0 
52 308 runs  ±0  47 296 ✔️  - 4  5 012 💤 +4  0 ❌ ±0 

Results for commit 8e9eaa2. ± Comparison against base commit 818022c.

♻️ This comment has been updated with latest results.

[FBurguer]

The liquibase --version command list correctly all the jar files and their location, liquibase also runs the correct jar file as the priority list Nathan provided.
Output Example:

Libraries:

• liquibase_libs/hsqldb.jar: HSQLDB 2.5.2
• internal/lib/jaxb-api.jar: jaxb-api 2.3.1
• lib/h2.jar: H2 Database Engine 2.1.212

Tests Environments:
Database: h2 2
SO: Windows 10
Java: 18.0.1

Database: h2 2
SO: Ubuntu
Java: 1.8.0_312