Instruction to publish OpenJFX artifacts to local Maven repository

[Maran23]

Idea for instructions so that developers can easily publish the JavaFX artifacts to their local Maven repository.
Makes testing existing applications very easy because you usually just need to change the Maven or Gradle JavaFX version number.

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The worflow for testing a Branch (or your local changes) is:

1. Run ./gradlew -PMAVEN_PUBLISH=true -PMAVEN_VERSION=<version> publishToMavenLocal
2. Change in your Maven project pom.xml

OR

2. Change in your Gradle project build.gradle

3. Run application, changes can be tested right away

Feedback welcome.

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jfx.git pull/2208/head:pull/2208
$ git checkout pull/2208

Update a local copy of the PR:
$ git checkout pull/2208
$ git pull https://git.openjdk.org/jfx.git pull/2208/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 2208

View PR using the GUI difftool:
$ git pr show -t 2208

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jfx/pull/2208.diff

[bridgekeeper]

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[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.