8536: Add LICENSE.txt and THIRD_PARTY_LICENSES.txt to the sources jars of jmc/core modules

[aymane-harmaz]

This PR makes sure license files are included into sources jars of the jmc/core child modules.

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Progress

• Commit message must refer to an issue
• Change must be properly reviewed (1 review required, with at least 1 Committer)

Issue

• JMC-8536: Add LICENSE.txt and THIRD_PARTY_LICENSES.txt to the sources jars of jmc/core modules (Task - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jmc.git pull/708/head:pull/708
$ git checkout pull/708

Update a local copy of the PR:
$ git checkout pull/708
$ git pull https://git.openjdk.org/jmc.git pull/708/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 708

View PR using the GUI difftool:
$ git pr show -t 708

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jmc/pull/708.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

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[openjdk]

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See the Progress checklist in the description for automated requirements.

[mlbridge]

Webrevs

• 00: Full (6a3a72b8)