Move svgSalamander out of JOSM

[michael2402]

The current problem with this is that we often apply our own fixes / quickfixes and that svgSalamander does not provide a maintained maven repository.

After setting up our git server:

• Clone the main svgSalamander repository
• Apply our patches (if we need to, currently they are in sync)
• Create a branch for our changes (for easier tracking them)
• Add a small gradle build script on our that includes the maven publish task
• Set up our CI to run the publish to our maven server on every commit to that branch.

• Change JOSM to use the maven dependency (using ivy for now)

Afterwards, syncing with upstream svgSalamander is easier.

[Don-vip]

There is now a fork maintained by DevCharly with releases available on Maven Central, so we can finally get rid of the source code copy in our repository:
​https://github.com/JFormDesigner/svgSalamander
​https://repo1.maven.org/maven2/com/formdev/svgSalamander/

[Don-vip]

In 18070/josm:

fix #16868 - use DevCharly's version of svgSalamander from Maven Central

[Don-vip]

And finally, the "src" folder only contains the sources of JOSM! \o/

[Don-vip]

dist-optimized fails with references to an SVG ant task we should not include

dist-optimized:
 [proguard] ProGuard, version 7.1.0-beta3
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find superclass or interface org.apache.tools.ant.Task
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.Task
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced method 'void log(java.lang.String)' in program class com.kitfox.svg.app.ant.SVGToImageAntTask
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.types.FileSet
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced method 'org.apache.tools.ant.Project getProject()' in program class com.kitfox.svg.app.ant.SVGToImageAntTask
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.types.FileSet
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.FileScanner
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.FileScanner
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.BuildException
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.BuildException
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.Task
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.types.FileSet
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.FileScanner
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.FileScanner
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.types.FileSet
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.types.FileSet
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.types.FileSet
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.FileScanner
 [proguard] Warning: com.kitfox.svg.app.ant.SVGToImageAntTask: can't find referenced class org.apache.tools.ant.types.FileSet
 [proguard] Warning: there were 17 unresolved references to classes or interfaces.
 [proguard]          You may need to add missing library jars or update their versions.
 [proguard]          If your code works fine without the missing classes, you can suppress
 [proguard]          the warnings with '-dontwarn' options.
 [proguard]          (https://www.guardsquare.com/proguard/manual/troubleshooting#unresolvedclass)
 [proguard] Warning: there were 2 unresolved references to program class members.
 [proguard]          Your input classes appear to be inconsistent.
 [proguard]          You may need to recompile the code.
 [proguard]          (https://www.guardsquare.com/proguard/manual/troubleshooting#unresolvedprogramclassmember)

[Don-vip]

In 18072/josm:

fix #16868 - build cleanup

[Don-vip]

In 18119/josm:

see #16868 - fix #21190 - include svgSalamander sources correctly