RFR: 8234174: Change IDEA VCS mapping to Git

[Alexander Scherbatiy]

Allow IDEA to correctly detect Git version control system when opening JFX project.

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

Commits:
 - f0f1866a: 8234174: Change IDEA VCS mapping to Git

Changes: https://git.openjdk.java.net/jfx/pull/37/files
 Webrev: https://webrevs.openjdk.java.net/jfx/37/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8234174
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jfx/pull/37.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/37/head:pull/37

PR: https://git.openjdk.java.net/jfx/pull/37