RFR: 8289255: update Eclipse .classpath and other configuration files [v10]

[Andy Goryachev]

> summary of changes:
> - fixed .classpath files
> - set UTF-8 encoding in the eclipse project config files
> 
> the list of eclipse projects that do compile in Eclipse as a result of this PR are:
> - base
> - controls
> - fxml
> - graphics
> - jfx
> - media
> - swing
> - swt
> - systemTests (can be dropped in favor ot tests
> - tests
> - web
> 
> Not supported (should be removed from workspace or simply closed):
> - apps
> - apps/*
> - buildSrc

Andy Goryachev has updated the pull request incrementally with one additional commit since the last revision:

  8289255: revert apps/

-------------

Changes:
  - all: https://git.openjdk.org/jfx/pull/804/files
  - new: https://git.openjdk.org/jfx/pull/804/files/313cd7bc..dbcd4f73

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=804&range=09
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=804&range=08-09

  Stats: 58 lines in 2 files changed: 0 ins; 34 del; 24 mod
  Patch: https://git.openjdk.org/jfx/pull/804.diff
  Fetch: git fetch https://git.openjdk.org/jfx pull/804/head:pull/804

PR: https://git.openjdk.org/jfx/pull/804