RFR: 7308: Move non-Eclipse dependant classes from org.openjdk.jmc.ui.common to org.openjdk.jmc.common [v6]

[Alex Macdonald]

> This PR addresses JMC-7308 [[0]](https://bugs.openjdk.java.net/browse/JMC-7308), in which it would be helpful to have some of the classes currently in jmc.ui.common shipped in core.
> 
> There are a number of classes currently in jmc.ui.common that would be a great asset to the core distribution (and the third-party applications that consume jmc-core), and these classes could live in jmc.common.
> 
> It isn't as straightforward as moving all of the packages to core, as there are still classes in these jmc.ui.common packages that have dependencies on Eclipse or rjmx. Having said that, the ones listed below can be moved without much difficulty:
> 
> - org.openjdk.jmc.ui.common.action (3)
>     Executable, IActionProvider, IUserAction
> 
> - org.openjdk.jmc.ui.common.jvm (5)
>     Connectable, JVMArch, JVMCommandLineToolkit, JVMDescriptor, JVMType
> 
> - org.openjdk.jmc.ui.common.resource (2)
>     IImageResource, Resource
> 
> - org.openjdk.jmc.ui.common.security (10)
>     ActionNotGrantedException, CredentialsNotAvailableException, FailedToSaveException, ICredentials, InMemoryCredentials, ISecurityManager, PersistentCredentials, SecurlyStoredByteArray, SecurityException, SecurityManagerFactory
> 
> - org.opendjk.jmc.ui.common.tree (3)
>     IArray, IChild, IParent
> 
> - org.openjdk.jmc.ui.common.util (4)
>     Environment, Filename, ICopyable, IObservable
> 
> - org.openjdk.jmc.ui.common.xydata (5)
>     DataSeries, DefautlTimestampedData, DefaultXYData, ITimeStampedData, IXYData
> 
> [0] https://bugs.openjdk.java.net/browse/JMC-7308

Alex Macdonald has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 18 commits:

 - add last missing copyright year update
 - add missing license year updates
 - Merge branch 'master' of https://git.openjdk.org/jmc into PR-7308
 - fix RjmxTestCase imports
 - update license headers to 2023
 - Merge master
 - fix imports for PersistentCredentials
   
   I must have missed this when I rebased onto the master branch. Fixing it
   up here.
 - update license headers to 2022
 - update license headers
 - update agent plugin imports
 - ... and 8 more: https://git.openjdk.org/jmc/compare/ae2fbf35...2536c4a7

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Changes: https://git.openjdk.org/jmc/pull/300/files
 Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=300&range=05
  Stats: 627 lines in 174 files changed: 150 ins; 173 del; 304 mod
  Patch: https://git.openjdk.org/jmc/pull/300.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/300/head:pull/300

PR: https://git.openjdk.org/jmc/pull/300